Fumiyuki ADACHI


Cooperative Distributed Antenna Transmission for 5G Mobile Communications Network
Fumiyuki ADACHI Amnart BOONKAJAY Yuta SEKI Tomoyuki SAITO Shinya KUMAGAI Hiroyuki MIYAZAKI 
Publication:   
Publication Date: 2017/08/01
Vol. E100-B  No. 8  pp. 1190-1204
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Technologies for 5G Mobile Communications System)
Category: Wireless Communication Technologies
Keyword: 
5G mobile communications networkdistributed antenna networkcooperative signal transmissionspace-time block codingmulti-user communicationsignal peak suppression
 Summary | Full Text:PDF(2.5MB)

FOREWORD
Fumiyuki ADACHI 
Publication:   
Publication Date: 2017/07/01
Vol. E100-B  No. 7  pp. 1031-1031
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(242.6KB)

Robust Widely Linear Beamforming via an IAA Method for the Augmented IPNCM Reconstruction
Jiangbo LIU Guan GUI Wei XIE Xunchao CONG Qun WAN Fumiyuki ADACHI 
Publication:   
Publication Date: 2017/07/01
Vol. E100-A  No. 7  pp. 1562-1566
Type of Manuscript:  LETTER
Category: Digital Signal Processing
Keyword: 
widely linear beamformingiterative adaptive approachinterference covariance matrix reconstructioniterative robust Capon beamformersignal steering vector estimation
 Summary | Full Text:PDF(263.9KB)

Frequency-Domain Equalization for Single-Carrier Space-Time Block Coded Transmit Diversity in a High Mobility Environment
Hiroyuki MIYAZAKI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/05/01
Vol. E99-B  No. 5  pp. 1180-1188
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
space-time block codingfrequency-domain equalizationdoubly selective fading
 Summary | Full Text:PDF(1004.7KB)

Single-Carrier Multi-User MIMO Downlink with Time-Domain Tomlinson-Harashima Precoding
Shohei YOSHIOKA Shinya KUMAGAI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/02/01
Vol. E99-B  No. 2  pp. 471-480
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MU-MIMOTomlinson-Harashima precodingsingle-carrier downlinktime-domainvector perturbation
 Summary | Full Text:PDF(1.9MB)

Joint Tx/Rx MMSE Filtering for Single-Carrier MIMO Eigenmode Transmission Using Iterative Interference Cancellation
Shinya KUMAGAI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2016/01/01
Vol. E99-B  No. 1  pp. 192-201
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
single-carrierMIMOeigenmodespatial/frequency filteringiterative interference cancellation
 Summary | Full Text:PDF(2.7MB)

A Matching Pursuit Generalized Approximate Message Passing Algorithm
Yongjie LUO Qun WAN Guan GUI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2015/12/01
Vol. E98-A  No. 12  pp. 2723-2727
Type of Manuscript:  LETTER
Category: Numerical Analysis and Optimization
Keyword: 
compressed sensinggeneralized approximate message passingmatching pursuitrobust
 Summary | Full Text:PDF(805.4KB)

Transmit Multi-Block FDE for Space-Time Block Coded Joint Transmit/Receive Diversity in a Quasi-Static Fading Channel
Hiroyuki MIYAZAKI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/10/01
Vol. E98-B  No. 10  pp. 2068-2078
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
space-time block codingtransmit frequency-domain equalization
 Summary | Full Text:PDF(1.6MB)

Centralized Inter-Cell Interference Coordination Using Multi-Band 3D Beam-Switching in Cellular Networks
Hiroyuki SEKI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/07/01
Vol. E98-B  No. 7  pp. 1363-1372
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
inter-cell interference coordination3D beam-switchingPF utilityKKT algorithmspatial user multiplexing
 Summary | Full Text:PDF(2.3MB)

Interference-Aware Channel Segregation Based Dynamic Channel Assignment for Wireless Networks
Yuki MATSUMURA Katsuhiro TEMMA Ren SUGAI Tatsunori OBARA Tetsuya YAMAMOTO Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/05/01
Vol. E98-B  No. 5  pp. 854-860
Type of Manuscript:  PAPER
Category: Network Management/Operation
Keyword: 
channel segregationdynamic channel assignmentco-channel interference
 Summary | Full Text:PDF(1.8MB)

Excess-Bandwidth Transmit Filtering Based on Minimization of Variance of Instantaneous Transmit Power for Low-PAPR SC-FDE
Amnart BOONKAJAY Tatsunori OBARA Tetsuya YAMAMOTO Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/04/01
Vol. E98-B  No. 4  pp. 673-685
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
single-carrier transmissiontransmit filteringpeak-to-average power ratio (PAPR)
 Summary | Full Text:PDF(2.8MB)

Joint Tx/Rx MMSE Filtering for Single-Carrier MIMO Transmission
Shinya KUMAGAI Tatsunori OBARA Tetsuya YAMAMOTO Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/09/01
Vol. E97-B  No. 9  pp. 1967-1976
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
single-carrier transmissionMIMOMMSE filteringrank adaptationadaptive modulation
 Summary | Full Text:PDF(2.5MB)

Analog Single-Carrier Transmission with Frequency-Domain Equalization
Thanh Hai VO Shinya KUMAGAI Tatsunori OBARA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/09/01
Vol. E97-B  No. 9  pp. 1958-1966
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
analog signal transmissionfrequency-domain equalizationsingle-carrier transmission
 Summary | Full Text:PDF(3MB)

Capacity-Fairness Controllable Scheduling Algorithms for Single-Carrier FDMA
Takayoshi IWATA Hiroyuki MIYAZAKI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/07/01
Vol. E97-B  No. 7  pp. 1474-1482
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
SC-FDMAmulti-user schedulingmax-mapPF-mapmax-min
 Summary | Full Text:PDF(3.8MB)

Signal-Carrier Cooperative DF Relay Using Adaptive Modulation
Kazuhiro KIMURA Hiroyuki MIYAZAKI Tatsunori OBARA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/02/01
Vol. E97-B  No. 2  pp. 387-395
Type of Manuscript:  PAPER
Category: Fundamental Theories for Communications
Keyword: 
cooperative decode-and-forward (DF) relaysingle-carrier transmissionadaptive modulation
 Summary | Full Text:PDF(1.3MB)

Training Sequence Inserted OFDM Transmission with MMSE-FDE
Tetsuya YAMAMOTO Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/02/01
Vol. E97-B  No. 2  pp. 476-483
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDMfrequency-domain equalizationtraining sequence
 Summary | Full Text:PDF(1.2MB)

2-Step Frequency-Domain Iterative Channel Estimation for Training Sequence Inserted Single-Carrier Block Transmission
Tetsuya YAMAMOTO Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/01/01
Vol. E97-B  No. 1  pp. 146-154
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
single-carrierfrequency-domain equalizationchannel estimationtraining sequence
 Summary | Full Text:PDF(1.6MB)

Joint Transmit/Receive MMSE-FDE for Analog Network Coded Single-Carrier Bi-directional Multi-Antenna Relay
Hiroyuki MIYAZAKI Tatsunori OBARA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/12/01
Vol. E96-B  No. 12  pp. 3153-3162
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
analog network codingsingle-carrier transmissionjoint transmit/receive frequency-domain equalization
 Summary | Full Text:PDF(2.8MB)

Efficient Resource Utilization for Heterogeneous Wireless Personal Area Networks
Abolfazl MEHBODNIYA Sonia AÏSSA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/06/01
Vol. E96-B  No. 6  pp. 1577-1587
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
radio resource managementheterogeneous networksMB-OFDMDS-UWBvertical handoffgrade of service
 Summary | Full Text:PDF(1.3MB)

Outage Channel Capacity of Direct/Cooperative AF Relay Switched SC-FDMA Using Spectrum Division/Adaptive Subcarrier Allocation
Masayuki NAKADA Tatsunori OBARA Tetsuya YAMAMOTO Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/04/01
Vol. E96-B  No. 4  pp. 1001-1011
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cooperative AF relaySC-FDMAspectrum division/adaptive subcarrier allocation
 Summary | Full Text:PDF(1.9MB)

Throughput Optimization in Rateless Coded Cooperative Relay Networks
Ashish JAMES A.S. MADHUKUMAR Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/05/01
Vol. E95-B  No. 5  pp. 1810-1814
Type of Manuscript:  LETTER
Category: Fundamental Theories for Communications
Keyword: 
rateless codingcooperative communicationfeedback
 Summary | Full Text:PDF(194.2KB)

2-Step QRM-MLBD for Broadband Single-Carrier Transmission
Katsuhiro TEMMA Tetsuya YAMAMOTO Kyesan LEE Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1366-1374
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
single-carrierQR decompositionM-algorithmMMSE-FDE
 Summary | Full Text:PDF(2MB)

Iterative Superimposed Pilot-Assisted Channel Estimation Using Sliding Wiener Filtering for Single-Carrier Block Transmission
Tetsuya UCHIUMI Tatsunori OBARA Kazuki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/03/01
Vol. E95-B  No. 3  pp. 924-932
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
superimposed pilotWiener filterautocorrelation function estimation
 Summary | Full Text:PDF(1.7MB)

Uplink Capacity of OFDM Multi-User MIMO Using Near-ML Detection in a Cellular System
Masashi ITAGAKI Tetsuya YAMAMOTO Kazuki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/01/01
Vol. E95-B  No. 1  pp. 198-205
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
multi-user MIMOOFDMlattice reductionQRM-MLDuplink capacity
 Summary | Full Text:PDF(1.1MB)

An Adaptive Weighted Clustering Algorithm for Cooperative Communications
Qiyue YU Weixiao MENG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12  pp. 3251-3258
Type of Manuscript:  Special Section PAPER (Special Section on Cooperative Communications for Cellular Networks)
Category: 
Keyword: 
cooperative communicationsclustering algorithmWCAstabilityfairness
 Summary | Full Text:PDF(1.5MB)

Iterative MMSE Detection with Interference Cancellation for Up-Link HARQ Using Frequency-Domain Filtered SC-FDMA MIMO Multiplexing
Suguru OKUYAMA Tetsuya YAMAMOTO Kazuki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12  pp. 3559-3568
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
SC-FDMAMMSEDinterference cancellationfrequency-domain filterMIMOHARQ
 Summary | Full Text:PDF(1.1MB)

Iterative MMSE-FDE/MUI Cancellation and Antenna Diversity for Frequency-Domain Filtered SC-FDMA Uplink
Suguru OKUYAMA Kazuki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/10/01
Vol. E94-B  No. 10  pp. 2847-2856
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
SC-FDMAMMSE-FDEMUI cancellationfrequency-domain filter
 Summary | Full Text:PDF(1MB)

Frequency Domain Adaptive Antenna Array for Broadband Single-Carrier Uplink Transmission
Wei PENG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/07/01
Vol. E94-B  No. 7  pp. 2003-2012
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
frequency domain adaptive antenna arraysingle carrier transmissionuplinkcellular system
 Summary | Full Text:PDF(901KB)

A Dynamic Source-Follower Integrator and Its Application to ΔΣ Modulators
Ryoto YAGUCHI Fumiyuki ADACHI Takao WAHO 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2011/05/01
Vol. E94-C  No. 5  pp. 802-806
Type of Manuscript:  Special Section PAPER (Special Section on Fundamentals and Applications of Advanced Semiconductor Devices)
Category: 
Keyword: 
switched-capacitorintegratoranalog-to-digital converterdelta-sigma modulator
 Summary | Full Text:PDF(509.4KB)

Joint MMSE-FDE & Spectrum Combining for a Broadband Single-Carrier Transmission in the Presence of Timing Offset
Tatsunori OBARA Kazuki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/05/01
Vol. E94-B  No. 5  pp. 1366-1375
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
frequency-domain equalizationsingle-carrier transmissionNyquist filtertiming offsetoversampling
 Summary | Full Text:PDF(1.8MB)

Transmission Performance of Frequency-Domain Filtered Single-Carrier Transmission Using Frequency-Domain Block Signal Detection with QRM-MLD
Tetsuya YAMAMOTO Kazuki TAKEDA KyeSan LEE Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/05/01
Vol. E94-B  No. 5  pp. 1386-1395
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
single-carrierfrequency-domain filteringfrequency-domain block signal detectionQRM-MLD
 Summary | Full Text:PDF(1.3MB)

Joint Iterative Transmit/Receive FDE & FDIC for Single-Carrier Block Transmissions
Kazuki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/05/01
Vol. E94-B  No. 5  pp. 1396-1404
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
frequency-domain equalizationinterference cancellationsingle-carrier
 Summary | Full Text:PDF(1012.1KB)

Performance Comparison of Overlap FDE and Sliding-Window Chip Equalization for Multi-Code DS-CDMA in a Frequency-Selective Fading Channel
Tatsunori OBARA Kazuki TAKEDA Kyesan LEE Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/03/01
Vol. E94-B  No. 3  pp. 750-757
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
overlap FDEsliding-window chip equalization (SWCE)DS-CDMA
 Summary | Full Text:PDF(1.9MB)

Recent Advances in Single-Carrier Frequency-Domain Equalization and Distributed Antenna Network
Fumiyuki ADACHI Kazuki TAKEDA Tatsunori OBARA Tetsuya YAMAMOTO Hiroki MATSUDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/11/01
Vol. E93-A  No. 11  pp. 2201-2211
Type of Manuscript:  INVITED PAPER (Special Section on Signal Design and its Application in Communications)
Category: 
Keyword: 
single-carrierfrequency-domain equalizationdistributed antenna networkMIMOsignal detection
 Summary | Full Text:PDF(1.5MB)

Joint Water Filling-MRT Downlink Transmit Diversity for a Broadband Single-Carrier Distributed Antenna Network
Hiroki MATSUDA Kazuki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/10/01
Vol. E93-B  No. 10  pp. 2753-2760
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
distributed antenna networktransmit diversitychannel capacityfrequency-selective channel
 Summary | Full Text:PDF(867.5KB)

Frequency-Domain Block Signal Detection for Single-Carrier Transmission
Tetsuya YAMAMOTO Kazuki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/08/01
Vol. E93-B  No. 8  pp. 2104-2112
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
single-carrierfrequency-domain equalizationMMSEV-BLAST
 Summary | Full Text:PDF(1.4MB)

Introduction of Frequency-Domain Signal Processing to Broadband Single-Carrier Transmissions in a Wireless Channel
Fumiyuki ADACHI Hiromichi TOMEBA Kazuki TAKEDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/09/01
Vol. E92-B  No. 9  pp. 2789-2808
Type of Manuscript:  INVITED SURVEY PAPER
Category: 
Keyword: 
single-carrierfrequency-domain equalizationfrequency-selective channelwireless systems
 Summary | Full Text:PDF(2.1MB)

Performance Comparison between CDTD and STTD for DS-CDMA/MMSE-FDE with Frequency-Domain ICI Cancellation
Kazuaki TAKEDA Yohei KOJIMA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/09/01
Vol. E92-B  No. 9  pp. 2882-2890
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAMMSE-FDEcyclic delay transmit diversity (CDTD)space-time transmit diversity (STTD)ICI cancellation
 Summary | Full Text:PDF(1.2MB)

Pilot-Assisted Channel Estimation for Orthogonal Multi-Carrier DS-CDMA with Frequency-Domain Equalization
Tomoyuki SHIMA Hiromichi TOMEBA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/09/01
Vol. E92-B  No. 9  pp. 2874-2881
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
orthogonal MC DS-CDMAfrequency-domain equalizationpilot-assisted channel estimation
 Summary | Full Text:PDF(808.8KB)

2-Step Maximum Likelihood Channel Estimation for Multicode DS-CDMA with Frequency-Domain Equalization
Yohei KOJIMA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/06/01
Vol. E92-B  No. 6  pp. 2065-2071
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAfrequency-domain equalizationMMSEchannel estimation
 Summary | Full Text:PDF(684.3KB)

Performance Improvement by Frequency-Domain Interleaving for OFDM/TDM Using MMSE-FDE in a Wireless Channel
Haris GACANIN Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1813-1817
Type of Manuscript:  Special Section LETTER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
OFDM/TDMMMSE-FDEfrequency-domain interleavingchannel frequency-selectivity
 Summary | Full Text:PDF(217.8KB)

A Novel Cooperative Relaying Network Scheme with Inter-Relay Data Exchange
Salma Ait FARES Fumiyuki ADACHI Eisuke KUDOH 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1786-1795
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
cooperative relay networktransmit beamformingMRCadaptive antenna arrayoptimal relay locations
 Summary | Full Text:PDF(563.5KB)

Hybrid Frequency Reuse Scheme for Cellular MIMO Systems
Wei PENG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1641-1648
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
MIMOdownlink capacityfrequency reuse factor
 Summary | Full Text:PDF(373KB)

Adaptive Code Assignment Algorithm for a Multi-User/Multi-Rate CDMA System
Qiyue YU Fumiyuki ADACHI Weixiao MENG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1600-1607
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
code assignmentcode treecost functionDCACDMA
 Summary | Full Text:PDF(1.7MB)

Frequency-Domain Equalization for Broadband Single-Carrier Multiple Access
Fumiyuki ADACHI Hiromichi TOMEBA Kazuki TAKEDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1441-1456
Type of Manuscript:  INVITED PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
single-carrierfrequency-domain equalizationfrequency-selective channelwireless systems
 Summary | Full Text:PDF(2.2MB)

RLS Channel Estimation with Adaptive Forgetting Factor for DS-CDMA Frequency-Domain Equalization
Yohei KOJIMA Hiromichi TOMEBA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1457-1465
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
DS-CDMAfrequency-domain equalizationchannel estimationRLS algorithm
 Summary | Full Text:PDF(1.1MB)

Joint Frequency-Domain Equalization and Despreading for Multi-Code DS-CDMA Using Cyclic Delay Transmit Diversity
Tetsuya YAMAMOTO Kazuki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1563-1572
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
DS-CDMAfrequency-domain equalizationcyclic delay transmit diversity
 Summary | Full Text:PDF(1.1MB)

Throughput Performance of MC-CDMA HARQ Using ICI Cancellation
Kaoru FUKUDA Akinori NAKAJIMA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/02/01
Vol. E92-B  No. 2  pp. 491-498
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MC-CDMAHARQICI cancellationLDPC decoding
 Summary | Full Text:PDF(1.5MB)

Channel Capacity of MC-CDMA and Impact of Residual ICI
Koichi ADACHI Fumiyuki ADACHI Masao NAKAGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/01/01
Vol. E92-B  No. 1  pp. 219-227
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MC-CDMAchannel capacityICI cancellationtheoretical study
 Summary | Full Text:PDF(1.6MB)

Pilot-Assisted Adaptive Channel Estimation for Coded MC-CDMA with ICI Cancellation
Tatsunori YUI Hiromichi TOMEBA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/01/01
Vol. E92-B  No. 1  pp. 246-253
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MC-CDMAinterference cancellationchannel estimation
 Summary | Full Text:PDF(909.3KB)

Channel Estimation Using Cyclic Delay Pilot for SC-MIMO Multiplexing
Takafumi FUJIMORI Kazuki TAKEDA Kazuyuki OZAKI Akinori NAKAJIMA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/09/01
Vol. E91-B  No. 9  pp. 2925-2932
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MIMO multiplexingchannel estimationcyclic delay
 Summary | Full Text:PDF(821.1KB)

On Cellular MIMO Channel Capacity
Koichi ADACHI Fumiyuki ADACHI Masao NAKAGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/07/01
Vol. E91-B  No. 7  pp. 2366-2373
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MIMOmulti-cell environemntchannel capacity
 Summary | Full Text:PDF(2.3MB)

Combined Effect of Random Transmit Power Control and Inter-Path Interference Cancellation on DS-CDMA Packet Mobile Communications
Eisuke KUDOH Haruki ITO ZhiSen WANG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/07/01
Vol. E91-A  No. 7  pp. 1589-1596
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
IPI cancellationrandom TPCcapture effectpacketthroughput
 Summary | Full Text:PDF(829.8KB)

Iterative Overlap FDE for Multicode DS-CDMA
Kazuaki TAKEDA Hiromichi TOMEBA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/06/01
Vol. E91-B  No. 6  pp. 1942-1951
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAMMSE frequency-domain equalizationICI cancellationoverlap FDE
 Summary | Full Text:PDF(1.3MB)

Frequency-Domain Eigenbeam-SDM and Equalization for Single-Carrier Transmissions
Kazuyuki OZAKI Akinori NAKAJIMA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/05/01
Vol. E91-B  No. 5  pp. 1521-1530
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MIMO multiplexingfrequency-domain SC E-SDMMMSE-FDEsingle-carrier transmission
 Summary | Full Text:PDF(1.3MB)

Multi-Hop Link Capacity of Multi-Route Multi-Hop MRC Diversity for a Virtual Cellular Network
Imane DAOU Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/05/01
Vol. E91-B  No. 5  pp. 1568-1574
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
virtual cellular networkmulti-hop multi-route diversitytransmit power controlmulti-hop link capacity
 Summary | Full Text:PDF(662.6KB)

Frequency-Domain Iterative Parallel Interference Cancellation for Multicode Spread-Spectrum MIMO Multiplexing
Akinori NAKAJIMA Deepshikha GARG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/05/01
Vol. E91-B  No. 5  pp. 1531-1539
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
spread-spectrumMIMO multiplexingfrequency-domain iterative PICmobile communication
 Summary | Full Text:PDF(2.5MB)

Orthogonal Multi-Carrier DS-CDMA with Frequency-Domain Equalization
Ken TANAKA Hiromichi TOMEBA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/04/01
Vol. E91-B  No. 4  pp. 1055-1062
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
orthogonal MC DS-CDMAfrequency-domain equalizationfrequency diversity gain
 Summary | Full Text:PDF(986.3KB)

PAPR Advantage of Amplitude Clipped OFDM/TDM
Haris GACANIN Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/03/01
Vol. E91-B  No. 3  pp. 931-934
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDM/TDMclippingMMSE-FDE
 Summary | Full Text:PDF(306.6KB)

BER Performance Analysis of MC-CDMA with Overlap-FDE
Hiromichi TOMEBA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/03/01
Vol. E91-B  No. 3  pp. 795-804
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
frequency-selective fading channeloverlap FDEMC-CDMA
 Summary | Full Text:PDF(1.1MB)

Joint Tomlinson-Harashima Precoding and Frequency-Domain Equalization for Broadband Single-Carrier Transmission
Kazuki TAKEDA Hiromichi TOMEBA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 258-266
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
single-carrierfrequency-domain equalizationTomlinson-Harashima precoding
 Summary | Full Text:PDF(1.4MB)

DS-CDMA Downlink Site Diversity with Frequency-Domain Equalization and Antenna Diversity Reception
Hirotaka SATO Hiromichi TOMEBA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/12/01
Vol. E90-B  No. 12  pp. 3591-3597
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAfrequency-domain equalizationsite diversitylink capacity
 Summary | Full Text:PDF(835.7KB)

DS-CDMA HARQ with Overlap FDE
Kazuki TAKEDA Hiromichi TOMEBA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/11/01
Vol. E90-B  No. 11  pp. 3189-3196
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAHARQoverlap FDE
 Summary | Full Text:PDF(472.9KB)

Adaptive Decision Feedback Channel Estimation with Periodic Phase Correction for Frequency-Domain Equalization in DS-CDMA Mobile Radios
Le LIU Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/08/01
Vol. E90-B  No. 8  pp. 1997-2005
Type of Manuscript:  PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
DS-CDMAfrequency-domain equalizationadaptive decision feedbackchannel estimation
 Summary | Full Text:PDF(814.4KB)

Frequency-Domain MMSE Channel Estimation for Frequency-Domain Equalization of DS-CDMA Signals
Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/07/01
Vol. E90-B  No. 7  pp. 1746-1753
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAfrequency-domain equalizationchannel estimationMMSE criterion
 Summary | Full Text:PDF(1MB)

Bit Error Rate Analysis of OFDM with Pilot-Assisted Channel Estimation
Richol KU Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/07/01
Vol. E90-B  No. 7  pp. 1725-1733
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDMchannel estimationimpulse responsepolynomial interpolationdecision feedbackWiener filter
 Summary | Full Text:PDF(898.7KB)

Frequency-Domain Multi-Stage Soft Interference Cancellation for DS-CDMA Uplink Signal Transmission
Koichi ISHIHARA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/05/01
Vol. E90-B  No. 5  pp. 1152-1161
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAfrequency-domain equalization (FDE)MUI cancellationmulti-user detection (MUD)
 Summary | Full Text:PDF(1.1MB)

Iterative Channel Estimation for Frequency-Domain Equalization of DSSS Signals
Koichi ISHIHARA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/05/01
Vol. E90-B  No. 5  pp. 1171-1180
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DSSSfrequency-domain equalization (FDE)channel estimation
 Summary | Full Text:PDF(1.9MB)

A DS-CDMA Cellular System Using Band Division and Channel Segregation Distributed Channel Allocation
Suguru SUGAWARA Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/04/01
Vol. E90-B  No. 4  pp. 904-909
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
channel assignmentchannel segregationDS-CDMAlink capacity
 Summary | Full Text:PDF(741KB)

Frequency-Domain Adaptive Antenna Array for Multi-Code MC-CDMA
Osamu NAKAMURA Shinsuke TAKAOKA Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/04/01
Vol. E90-B  No. 4  pp. 918-925
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MC-CDMAadaptive antenna arrayadaptive algorithmfrequency-domain
 Summary | Full Text:PDF(1MB)

Frequency-Domain Space-Time Block Coded-Joint Transmit/Receive Diversity for Direct-Sequence Spread Spectrum Signal Transmission
Hiromichi TOMEBA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/03/01
Vol. E90-B  No. 3  pp. 597-606
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
frequency-selective fading channelfrequency-domain pre-equalizationspace-time block codingtransmit/receive antenna diversityDSSS
 Summary | Full Text:PDF(949KB)

Space-Time Cyclic Delay Transmit Diversity for a Multi-Code DS-CDMA Signal with Frequency-Domain Equalization
Ryoko KAWAUCHI Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/03/01
Vol. E90-B  No. 3  pp. 591-596
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
multi-code DS-CDMAFrequency-domain equalizationCyclic Delay Transmit Diversity (CDTD)Space-Time Transmit Diversity (STTD)
 Summary | Full Text:PDF(1.1MB)

Iterative FDIC Using 2D-MMSE FDE for Turbo-Coded HARQ in SC-MIMO Multiplexing
Akinori NAKAJIMA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/03/01
Vol. E90-B  No. 3  pp. 693-695
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
single-carrierMIMOiterative cancellationMMSEARQ
 Summary | Full Text:PDF(294.3KB)

Frequency-Interleaved Spread Spectrum with MMSE Frequency-Domain Equalization
Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/02/01
Vol. E90-B  No. 2  pp. 260-268
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
componentMMSE-FDEfrequency-interleaving
 Summary | Full Text:PDF(970.6KB)

Impact of Shadowing Correlation on Reverse Link Capacity of DS-CDMA Cellular System
Arif JUNAIDI Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/12/01
Vol. E89-B  No. 12  pp. 3483-3486
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
DS-CDMA cellular systemreverse link capacityshadowing correlation
 Summary | Full Text:PDF(306.5KB)

Iterative Frequency-Domain Soft Interference Cancellation for Multicode DS- and MC-CDMA Transmissions and Performance Comparison
Koichi ISHIHARA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/12/01
Vol. E89-B  No. 12  pp. 3344-3355
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAMC-CDMAfrequency-domain equalization (FDE)multicodeinterference cancelation
 Summary | Full Text:PDF(1.3MB)

Frequency-Domain ICI Cancellation with MMSE Equalization for DS-CDMA Downlink
Kazuaki TAKEDA Koichi ISHIHARA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/12/01
Vol. E89-B  No. 12  pp. 3335-3343
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAfrequency-domain equalizationMMSEICI cancellation
 Summary | Full Text:PDF(988.3KB)

2-Dimensional OVSF Spread/Chip-Interleaved CDMA
Le LIU Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/12/01
Vol. E89-B  No. 12  pp. 3363-3375
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
CDMAmulti-rateuplink transmissionchip interleaving2-dimensional OVSF spreading
 Summary | Full Text:PDF(1.2MB)

Joint Frequency-Domain STTD and Antenna Diversity Reception Based on MMSE Criterion for OFDM/TDM
Haris GACANIN Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/10/01
Vol. E89-B  No. 10  pp. 2952-2955
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDM/TDMfrequency-domain STTD
 Summary | Full Text:PDF(374.1KB)

Decision Feedback Chip-Level Maximum Likelihood Detection for DS-CDMA in a Frequency-Selective Fading Channel
Akihiro SAITO Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/09/01
Vol. E89-B  No. 9  pp. 2564-2571
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAfrequency-selective fading channelmaximum likelihood detectionrake combining
 Summary | Full Text:PDF(864.9KB)

A Study on Spatial MMSE Despreading for OSTSTD in a Fast Fading Channel
Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/08/01
Vol. E89-B  No. 8  pp. 2266-2270
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
OSTSTDspatial MMSE despreadingfast fading
 Summary | Full Text:PDF(301.3KB)

Space-Time Block Coded Joint Transmit/Receive Diversity in a Frequency-Nonselective Rayleigh Fading Channel
Hiromichi TOMEBA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/08/01
Vol. E89-B  No. 8  pp. 2189-2195
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
antenna diversityspace-time block codingtime-division duplex
 Summary | Full Text:PDF(739.2KB)

Blocking Probability of a DS-CDMA Multi-Hop Virtual Cellular Network
Lalla Soundous EL ALAMI Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/07/01
Vol. E89-A  No. 7  pp. 1875-1883
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
virtual cellular networkmulti-hop networkchannel segregation dynamic channel assignmentblocking probability
 Summary | Full Text:PDF(916.3KB)

Theoretical Performance Analysis of Downlink Site Diversity in an MC-CDMA Cellular System
Arny ALI Takamichi INOUE Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/04/01
Vol. E89-B  No. 4  pp. 1294-1304
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MC-CDMAsite diversitydownlink capacityoutage probabilityMMSE-based FDEantenna diversity
 Summary | Full Text:PDF(1MB)

Bit Error Rate Analysis of OFDM/TDM with Frequency-Domain Equalization
Haris GACANIN Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/02/01
Vol. E89-B  No. 2  pp. 509-517
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDMtime division multiplexingfrequency-domain equalizationfrequency-selective fading
 Summary | Full Text:PDF(618.4KB)

Frequency-Domain Pre-Equalization for MC-CDMA/TDD Uplink and Its Bit Error Rate Analysis
Satoshi ABE Shinsuke TAKAOKA Hiromichi TOMEBA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/01/01
Vol. E89-B  No. 1  pp. 162-173
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
MC-CDMAfrequency-domain pre-equalizationfrequency-selective channel
 Summary | Full Text:PDF(1MB)

Transmit Power Efficiency of Multi-Hop MRC Diversity for a Virtual Cellular Network
Imane DAOU Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/09/01
Vol. E88-B  No. 9  pp. 3643-3648
Type of Manuscript:  Special Section LETTER (Special Section on Advances in Ad Hoc Mobile Communications and Networking)
Category: 
Keyword: 
virtual cellular networkmulti-hop MRC diversitytransmit power controlwireless multi-hop
 Summary | Full Text:PDF(621.3KB)

Pilot-Assisted Channel Estimation Using Adaptive Interpolation for Coherent Rake Reception of DS-CDMA Signals
Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/07/01
Vol. E88-B  No. 7  pp. 2962-2970
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAadaptive interpolationconjugate centrosymmetry propertyfast convergence
 Summary | Full Text:PDF(980KB)

Frequency-Domain Pre-Equalization for Multicode Direct Sequence Spread Spectrum Signal Transmission
Fumiyuki ADACHI Kazuaki TAKEDA Hiromichi TOMEBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/07/01
Vol. E88-B  No. 7  pp. 3078-3081
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
pre-equalizationfrequency-domain equalizationdirect sequence spread spectrum
 Summary | Full Text:PDF(341KB)

Distributed Dynamic Channel Assignment for Multi-Hop DS-CDMA Virtual Cellular Network
Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/06/01
Vol. E88-B  No. 6  pp. 2525-2531
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
virtual cellular networkmulti-hop networkadhoc networkroutingdynamic channel assignmentchannel segregation
 Summary | Full Text:PDF(765KB)

Theoretical Study of Site Selection Diversity Transmission in DS-CDMA Cellular Mobile Radio
Mahbub ALAM Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/05/01
Vol. E88-B  No. 5  pp. 2202-2206
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAsite diversitysoft handoffforward link capacityrake combining
 Summary | Full Text:PDF(476.3KB)

Orthogonal Space-Time Spreading Transmit Diversity
Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/05/01
Vol. E88-B  No. 5  pp. 2120-2127
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
transmit diversityspace-time spreadingfading channel
 Summary | Full Text:PDF(900.6KB)

Frequency-Domain Adaptive Prediction Iterative Channel Estimation for OFDM Signal Reception
Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/04/01
Vol. E88-B  No. 4  pp. 1730-1734
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
OFDMiterative channel estimationadaptive predictionfrequency-selective fading
 Summary | Full Text:PDF(458.9KB)

Power and Frequency Efficient Wireless Multi-Hop Virtual Cellular Concept
Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/04/01
Vol. E88-B  No. 4  pp. 1613-1621
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
virtual cellular networkfrequency reuse distancetransmit power efficiencymulti-hoprouting
 Summary | Full Text:PDF(978.7KB)

Performance Evaluation of Multi-Rate DS-CDMA Using Frequency-Domain Equalization in a Frequency-Selective Fading Channel
Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/03/01
Vol. E88-B  No. 3  pp. 1191-1201
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
DS-CDMAfrequency-domain equalizationfrequency-selective fading
 Summary | Full Text:PDF(1.1MB)

Frequency-Domain Pre-Equalization Transmit Diversity for MC-CDMA Uplink Transmission
Hiromichi TOMEBA Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 575-584
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part2)
Category: 
Keyword: 
pre-equalizationtransmit diversityMC-CDMAfrequency-domain equalizationfrequency-selective channel
 Summary | Full Text:PDF(1.4MB)

FOREWORD
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 425-426
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(52.5KB)

Study on the OVSF Code Selection for Downlink MC-CDMA
Takamichi INOUE Deepshikha GARG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 499-508
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part2)
Category: 
Keyword: 
MC-CDMAMMSE frequency-domain equalizationOVSF codefrequency-selective fadingfrequency interleaving
 Summary | Full Text:PDF(1.3MB)

Pilot-Assisted Decision Feedback Channel Estimation for STTD in OFDM Mobile Radio
Koichi ISHIHARA Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 561-567
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part2)
Category: 
Keyword: 
pilotdecision feedbackchannel estimationOFDMSTTD
 Summary | Full Text:PDF(1.3MB)

A More Accurate Analysis of Interference for Rake Combining on DS-CDMA Forward Link in Mobile Radio
Kaibin HUANG Fumiyuki ADACHI Yong Huat CHEW 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 654-663
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
mobile radioRake receiverDS-CDMAmultipath fading channelmultiple-access-interference
 Summary | Full Text:PDF(968.2KB)

Throughput Comparison of Turbo-Coded HARQ in OFDM, MC-CDMA and DS-CDMA with Frequency-Domain Equalization
Deepshikha GARG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 664-677
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDMmulticode MC-CDMAmulticode DS-CDMAMMSE frequency-domain equalizationRCPT HARQ
 Summary | Full Text:PDF(2.3MB)

Frequency-Domain Pre-Rake Transmission for DSSS/TDD Mobile Communications Systems
Fumiyuki ADACHI Kazuaki TAKEDA Hiromichi TOMEBA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 784-787
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
frequency-domain equalizationpre-rakespread spectrummobile radio
 Summary | Full Text:PDF(443KB)

FOREWORD
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1  pp. 1-2
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(52.5KB)

Frequency-Domain Equalization for MC-CDMA Downlink Site Diversity and Performance Evaluation
Takamichi INOUE Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1  pp. 84-92
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part 1)
Category: Diversity
Keyword: 
MC-CDMAsite diversityMMSE frequency-domain equalization
 Summary | Full Text:PDF(1.1MB)

Diversity-Coding-Orthogonality Trade-off for Coded MC-CDMA with High Level Modulation
Deepshikha GARG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1  pp. 76-83
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part 1)
Category: Diversity
Keyword: 
MC-CDMAhigh-level modulationspreading factorfrequency diversitychannel codingorthogonality
 Summary | Full Text:PDF(1MB)

Iterative Adaptive Soft Parallel Interference Canceller for Turbo Coded MIMO Multiplexing
Akinori NAKAJIMA Deepshikha GARG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/12/01
Vol. E87-B  No. 12  pp. 3813-3819
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
MIMO multiplexingparallel interference cancellermobile communicationRayleigh fadingturbo coding
 Summary | Full Text:PDF(999.5KB)

Application of Random Transmit Power Control to DS-CDMA/TDD Packet Mobile Radio
ZhiSen WANG Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/10/01
Vol. E87-B  No. 10  pp. 3144-3149
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMApacket communicationcapture effecttransmit power controllink capacity
 Summary | Full Text:PDF(685.8KB)

Bit Error Rate Analysis of DS-CDMA with Joint Frequency-Domain Equalization and Antenna Diversity Combining
Fumiyuki ADACHI Kazuaki TAKEDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/10/01
Vol. E87-B  No. 10  pp. 2991-3002
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DS-CDMAfrequency-domain equalizationantenna diversitymobile radio
 Summary | Full Text:PDF(1.1MB)

Performance Comparison of Delay Transmit Diversity and Frequency-Domain Space-Time Coded Transmit Diversity for Orthogonal Multicode DS-CDMA Signal Reception Using Frequency-Domain Equalization
Takeshi ITAGAKI Kazuaki TAKEDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/09/01
Vol. E87-B  No. 9  pp. 2719-2728
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
multicode DS-CDMAfrequency-domain equalizationMMSEtransmit diversity
 Summary | Full Text:PDF(1.7MB)

Multipath Fading Simulator Based on Distributed Scattering Model
Hidenori OKUNI Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/08/01
Vol. E87-B  No. 8  pp. 2422-2426
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
fading simulatorarrival angle distribution
 Summary | Full Text:PDF(800.2KB)

Impact of Shadowing Correlation on Spectrum Efficiency of a Power Controlled Cellular System
Kentarou SAWA Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/07/01
Vol. E87-B  No. 7  pp. 1964-1969
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
cellular systemfrequency reuse distancetransmit power controloutageshadowing correlation
 Summary | Full Text:PDF(879.6KB)

Joint Frequency-Domain Equalization and Antenna Diversity Combining for Orthogonal Multicode DS-CDMA Signal Transmissions in a Frequency-Selective Fading Channel
Takeshi ITAGAKI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/07/01
Vol. E87-B  No. 7  pp. 1954-1963
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
frequency-domain equalizationantenna diversitymulticode DS-CDMAfrequency-selective fading
 Summary | Full Text:PDF(1.8MB)

Joint Use of Frequency-Domain Equalization and Transmit/Receive Antenna Diversity for Single-Carrier Transmissions
Kazuaki TAKEDA Takeshi ITAGAKI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/07/01
Vol. E87-B  No. 7  pp. 1946-1953
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
single-carrier transmissionfrequency-domain equalizationdelay transmit diversityfrequency-selective fading
 Summary | Full Text:PDF(1MB)

Joint Space-Time Transmit Diversity and Minimum Mean Square Error Equalization for MC-CDMA with Antenna Diversity Reception
Deepshikha GARG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/04/01
Vol. E87-B  No. 4  pp. 849-857
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
mobile radioMC-CDMAMMSE equalizationspace-time codingtransmit diversity
 Summary | Full Text:PDF(1.2MB)

Impact of Arrival Angle Spread of Each Cluster of Irresolvable Paths on Adaptive Antenna Array and Antenna Diversity in DS-CDMA Mobile Radio
Yusuke SUZUKI Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/04/01
Vol. E87-B  No. 4  pp. 1037-1040
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
adaptive antenna arraymobile communicationDS-CDMALMS algorithmmultipath fading
 Summary | Full Text:PDF(783.6KB)

A Study on Optimum Weights for Delay Transmit Diversity for DS-CDMA in a Frequency Non-selective Fading Channel
Akihito KATOH Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/04/01
Vol. E87-B  No. 4  pp. 838-848
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
transmit diversitytransmit power controlfadingDS-CDMARake combining
 Summary | Full Text:PDF(1.6MB)

Chip Interleaved Multicode DS-CDMA with MMSEC in A Fading Channel
Takeshi ITAGAKI Tomoki SAO Deepshikha GARG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/01/01
Vol. E87-B  No. 1  pp. 79-87
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
multicode DS-CDMAchip interleavingMMSECfading channel
 Summary | Full Text:PDF(1MB)

The Overview of the New Generation Mobile Communication System and the Role of Software Defined Radio Technology
Hiroshi HARADA Masahiro KURODA Hiroyuki MORIKAWA Hiromitsu WAKANA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/12/01
Vol. E86-B  No. 12  pp. 3374-3384
Type of Manuscript:  INVITED PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radio (SDR)new generation mobile communication systemseamless communications
 Summary | Full Text:PDF(2.5MB)

On Received Signal Power Distribution of Wideband Signals in a Frequency-Selective Rayleigh Fading Channel
Fumiyuki ADACHI Akihito KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/11/01
Vol. E86-B  No. 11  pp. 3340-3343
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
signal power distributionfrequency-selective channelNakagami m-fadingmobile communication
 Summary | Full Text:PDF(348.4KB)

Joint Antenna Diversity and Frequency-Domain Equalization for Multi-Rate MC-CDMA
Fumiyuki ADACHI Tomoki SAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/11/01
Vol. E86-B  No. 11  pp. 3217-3224
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
MC-CDMAMMSECfrequency-domain equalizationantenna diversityfrequency-selective channel
 Summary | Full Text:PDF(942.4KB)

Frequency-Domain Rake Combining for Antenna Diversity Reception of DS-CDMA Signals
Fumiyuki ADACHI Takeshi ITAGAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/09/01
Vol. E86-B  No. 9  pp. 2781-2784
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
frequency-domain equalizationrake combiningantenna diversity receptionDS-CDMA
 Summary | Full Text:PDF(364.7KB)

Theoretical Analysis of MC-CDMA Forward Link Performance in the Presence of Pure Impulsive Interference
Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/08/01
Vol. E86-B  No. 8  pp. 2425-2432
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
impulsive interferenceMC-CDMAOFDM-CDMAantenna diversity
 Summary | Full Text:PDF(639.4KB)

A Weighted Delay Transmit Diversity System Combined with Antenna Diversity Reception for DS-CDMA Mobile Radio
Akihito KATO Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/07/01
Vol. E86-B  No. 7  pp. 2211-2215
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
transmit diversity (TD)transmit power controlfadingDS-CDMARake combining
 Summary | Full Text:PDF(599.1KB)

Uplink Link Capacity of DS-CDMA Packet Mobile Communications with Rake Combining and Transmit Power Control
ZhiSen WANG Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/07/01
Vol. E86-B  No. 7  pp. 2203-2206
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
DS-CDMApacket communicationtransmit power controlRake combininglink capacitycapture effect
 Summary | Full Text:PDF(387.6KB)

Comparative Study of Iterative Channel Estimation Schemes for Turbo Decoding with Antenna Diversity Reception in Rayleigh Fading
Ryohei KIMURA Deepshikha GARG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/03/01
Vol. E86-B  No. 3  pp. 1149-1152
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
turbo decodingpilot symboliterative channel estimationiterative decoding
 Summary | Full Text:PDF(713KB)

Modeling of DS-CDMA Transmit Power Control in a Fast Fading Channel with Antenna Diversity
Akihito KATOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/02/01
Vol. E86-B  No. 2  pp. 769-776
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
DS-CDMAtransmit power controlfadingmobile radio communications system
 Summary | Full Text:PDF(1.1MB)

Effect of Transmit Power Limitation in Power Controlled DS-CDMA
Akihito KATOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/02/01
Vol. E86-B  No. 2  pp. 757-768
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
DS-CDMAtransmit power controlfading
 Summary | Full Text:PDF(1.2MB)

Comparative Study of Various Frequency Equalization Techniques for Downlink of a Wireless OFDM-CDMA System
Tomoki SAO Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/01/01
Vol. E86-B  No. 1  pp. 352-364
Type of Manuscript:  Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
Category: 
Keyword: 
OFDMCDMAfrequency equalization combiningfrequency selective channel
 Summary | Full Text:PDF(1.8MB)

Field Experiments on Pilot Symbol-Assisted Coherent Multistage Interference Canceller in DS-CDMA Reverse Link
Kenichi HIGUCHI Koichi OKAWA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/01/01
Vol. E86-B  No. 1  pp. 181-190
Type of Manuscript:  Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
Category: 
Keyword: 
mobile radio communicationDS-CDMAinterference cancellertransmit power controlchannel estimation
 Summary | Full Text:PDF(1.6MB)

Pilot-Aided Threshold Detection Combining for OFDM-CDMA Down Link Transmissions in a Frequency Selective Fading Channel
Tomoki SAO Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2816-2827
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
OFDMCDMAfrequency-domain equalizationdoubly selective multipath fading channel
 Summary | Full Text:PDF(807.2KB)

Experimental Evaluation of High Rate Data Transmission Using Turbo/Convolutional Coding in W-CDMA Mobile Communications
Kenichi HIGUCHI Takehiro IKEDA Satoru FUKUMOTO Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2750-2759
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
mobile radio communicationDS-CDMAturbo codingconvolutional codingfast transmission power control
 Summary | Full Text:PDF(1.9MB)

Reverse Link Capacity of Orthogonal Multi-Code DS-CDMA with Multiple Connections
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/11/01
Vol. E85-B  No. 11  pp. 2522-2526
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
orthogonal multi-code systemDS-CDMAreverse link capacitymobile communication system
 Summary | Full Text:PDF(480.2KB)

Adaptive Prediction Iterative Channel Estimation for Combined Antenna Diversity and Coherent Rake Reception of Multipath-Faded DSSS Signals
Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/11/01
Vol. E85-B  No. 11  pp. 2405-2415
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
iterative channel estimationpilot symbolDSSSfading channel
 Summary | Full Text:PDF(2.4MB)

Analysis of DS-CDMA Transmission Performance in the Presence of Pure Impulsive Interference over Frequency Selective Fading
Eisuke KUDOH Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/11/01
Vol. E85-B  No. 11  pp. 2395-2404
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
impulsive interferenceDS-CDMAantenna diversityRake receiver
 Summary | Full Text:PDF(741.7KB)

Capacity Expressions for Power-Controlled Multi-Class DS-CDMA Reverse Link with Antenna Diversity and Rake Combining
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/09/01
Vol. E85-B  No. 9  pp. 1854-1859
Type of Manuscript:  LETTER
Category: Terrestrial Radio Communications
Keyword: 
DS-CDMAtransmit power controlantenna diversityrake combining
 Summary | Full Text:PDF(285.5KB)

Hybrid Data Transmission Technique for Multimedia Satellite Broadcasting
Masatoshi HAMADA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/08/01
Vol. E85-B  No. 8  pp. 1463-1468
Type of Manuscript:  Special Section PAPER (Special Issue on Outstanding Papers from APCC 2001)
Category: 
Keyword: 
satellite broadcastingdata transmissionmultimedia communication
 Summary | Full Text:PDF(908KB)

Pilot-Aided Adaptive Prediction Channel Estimation in a Frequency-Nonselective Fading Channel
Shinsuke TAKAOKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/08/01
Vol. E85-B  No. 8  pp. 1552-1560
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
fading channelchannel estimationpilot symboladaptive predictionnormalized LMS
 Summary | Full Text:PDF(1.1MB)

Experiments on Adaptive Antenna Array Transmit Diversity in W-CDMA Forward Link
Atsushi HARADA Shinya TANAKA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/07/01
Vol. E85-A  No. 7  pp. 1612-1623
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
adaptive antenna arrayDS-CDMAmobile radio
 Summary | Full Text:PDF(2.8MB)

Experimental Evaluation of Three-Step Cell Search Method in W-CDMA Mobile Communications
Kenichi HIGUCHI Yukiko HANADA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2002/07/01
Vol. E85-A  No. 7  pp. 1511-1523
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
DS-CDMAasynchronous cell sitecell searchcode acquisitionscrambling code
 Summary | Full Text:PDF(2.6MB)

Joint Effect of Transmit Power Control and Antenna Diversity on Spectrum Efficiency of a Cellular System
Fumiyuki ADACHI Akihito KATOH Deepshikha GARG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/05/01
Vol. E85-B  No. 5  pp. 919-928
Type of Manuscript:  Special Section PAPER (Wireless Communications Issue)
Category: 
Keyword: 
transmit power controlantenna diversity receptioncellular systemspectrum efficiency
 Summary | Full Text:PDF(549.1KB)

Reverse Link Bandwidth Efficiency of a Spectrally Overlapped CDMA System
Duk Kyung KIM Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/04/01
Vol. E85-B  No. 4  pp. 758-768
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
spectrally overlapped CDMA systempulse shaping filterfast power controlmultiple cellmultipath fading
 Summary | Full Text:PDF(420.7KB)

Time- and Frequency-Domain Expressions for Rake Combiner Output SNR
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/01/01
Vol. E85-B  No. 1  pp. 340-342
Type of Manuscript:  LETTER
Category: Wireless Communication Technology
Keyword: 
spread spectrumRake combinermultipath channelmobile communication
 Summary | Full Text:PDF(210.3KB)

Experiments on Space Time Block Coding Transmit Diversity (STTD) in W-CDMA Forward Link
Satoru FUKUMOTO Kenichi HIGUCHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12  pp. 3045-3057
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
mobile radio communicationW-CDMAtransmit diversityfast transmit power control
 Summary | Full Text:PDF(2.4MB)

Experiments on Inter-Sector Diversity Using Maximal Ratio Combining in W-CDMA Reverse Link
Akihito MORIMOTO Kenichi HIGUCHI Satoru FUKUMOTO Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/12/01
Vol. E84-A  No. 12  pp. 3012-3025
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
W-CDMAsite diversitytransmit power controlRake combining
 Summary | Full Text:PDF(2.4MB)

Performance Analysis of Closed-Loop Like Power Control for Packet Transmission over DS-CDMA in a Multipath Fading Environment
Duk Kyung KIM Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/09/01
Vol. E84-B  No. 9  pp. 2635-2643
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
packet transmissionclosed-loop like power controlmultipath fading
 Summary | Full Text:PDF(251.5KB)

Outer Loop Control of Fast Transmit Power Control Based on Intermediate Block Error Rate in Concatenated Channel Coding for DS-CDMA Mobile Radio
Koichi OKAWA Kenichi HIGUCHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/07/01
Vol. E84-A  No. 7  pp. 1691-1701
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
mobile radioW-CDMAconcatenated channel codingtransmit power controlouter loop control
 Summary | Full Text:PDF(2.1MB)

Fast Two-Step Beam Tracking Algorithm of Coherent Adaptive Antenna Array Diversity Receiver in W-CDMA Reverse Link
Taisuke IHARA Shinya TANAKA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/07/01
Vol. E84-B  No. 7  pp. 1835-1848
Type of Manuscript:  Special Section PAPER (Special Issue on Adaptive Array Antenna Techniques for Advanced Wireless Communications)
Category: Application to CDMA
Keyword: 
DS-CDMAadaptive antenna arraybeam trackingmobile radio communication
 Summary | Full Text:PDF(2.3MB)

Performance of Coherent Multi-Carrier/DS-CDMA and MC-CDMA for Broadband Packet Wireless Access
Sadayuki ABETA Hiroyuki ATARASHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3  pp. 406-414
Type of Manuscript:  Special Section PAPER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
Category: 
Keyword: 
broadband packet wireless accesssingle-carrier/DS-CDMAmulti-carrier/DS-CDMAmulticarrier CDMA
 Summary | Full Text:PDF(1.1MB)

FOREWORD
Susumu YOSHIDA Fumiyuki ADACHI Jun HORIKOSHI Masahiro UMEHIRA Shingo OHMORI Yasutaka OGAWA Takahiko OGINO Tadashi FUJINO Yukitsuna FURUYA Koichi HONMA Yasushi YAMAO Yoshihide YAMADA Fumio WATANABE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3  pp. 355-358
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(549.9KB)

Experiments on Inter-Cell Site Diversity Using Two-Step Selection Combining in W-CDMA Reverse Link
Akihito MORIMOTO Kenichi HIGUCHI Satoru FUKUMOTO Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3  pp. 435-445
Type of Manuscript:  Special Section PAPER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
Category: 
Keyword: 
DS-CDMAsite diversitytransmit power controlCRCSIR
 Summary | Full Text:PDF(1.2MB)

Combined Effect of Coherent Adaptive Antenna Array Diversity and SINR-Based Fast Transmit Power Control in W-CDMA Reverse Link
Shinya TANAKA Atsushi HARADA Taisuke IHARA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3  pp. 425-434
Type of Manuscript:  Special Section PAPER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
Category: 
Keyword: 
mobile communicationW-CDMAadaptive antenna arrayfast transmit power control
 Summary | Full Text:PDF(851KB)

Experimental Evaluation of Coherent Rake Combining for Broadband Single-Carrier DS-CDMA Wireless Communications
Takehiro IKEDA Koichi OKAWA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3  pp. 415-424
Type of Manuscript:  Special Section PAPER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
Category: 
Keyword: 
wireless communicationbroadband DS-CDMARake combiningtransmit power control
 Summary | Full Text:PDF(864.1KB)

Evaluation of Reverse-Link Capacity of a DS-CDMA System with Power Control and Diversity Reception
Dugin LYU Hirohito SUDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/02/01
Vol. E84-B  No. 2  pp. 238-244
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
power controldiversity receptionoutage probabilitylink capacityDS-CDMA cellular system
 Summary | Full Text:PDF(500.3KB)

Wireless Past and Future--Evolving Mobile Communications Systems--
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2001/01/01
Vol. E84-A  No. 1  pp. 55-60
Type of Manuscript:  INVITED PAPER (Special Section on the 10th Anniversary of the IEICE Transactions of Fundamentals: "Last Decade and 21st Century")
Category: 
Keyword: 
mobile communications systemswireless techniquesmultimedia communicationswireless Internet
 Summary | Full Text:PDF(489.1KB)

Experimental Evaluations on Array Antenna Configuration of Adaptive Antenna Array Diversity Receiver in W-CDMA Reverse Link
Taisuke IHARA Shinya TANAKA Atsushi HARADA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/11/25
Vol. E83-A  No. 11  pp. 2120-2128
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
mobile radio communicationDS-CDMAadaptive antenna arrayinterference suppressing
 Summary | Full Text:PDF(2MB)

Path Search Performance and Its Parameter Optimization of Pilot Symbol-Assisted Coherent Rake Receiver for W-CDMA Mobile Radio
Satoru FUKUMOTO Koichi OKAWA Kenichi HIGUCHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/11/25
Vol. E83-A  No. 11  pp. 2110-2119
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
mobile radio communicationDS-CDMARake receiverpath search
 Summary | Full Text:PDF(3MB)

Experiments on Fast Cell Search Algorithm Using Scrambling Code Masking for Inter-Cell Asynchronous W-CDMA System
Kenichi HIGUCHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/11/25
Vol. E83-A  No. 11  pp. 2102-2109
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
cell searchinter-cell asynchronous systemDS-CDMAmobile radio
 Summary | Full Text:PDF(1.1MB)

Fast Cell Search Algorithm in Idle Mode for Inter-Cell Asynchronous W-CDMA Mobile Radio
Yukiko HANADA Kenichi HIGUCHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/08/25
Vol. E83-B  No. 8  pp. 1610-1618
Type of Manuscript:  Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
Category: 
Keyword: 
mobile radioDS-CDMAtarget cell searchinter-cell asynchronous system
 Summary | Full Text:PDF(1MB)

Experiments on 2-Mbps Data Transmission Applying Antenna Diversity Reception over 5-MHz W-CDMA Mobile Radio Link
Koichi OKAWA Satoru FUKUMOTO Kenichi HIGUCHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/08/25
Vol. E83-B  No. 8  pp. 1602-1609
Type of Manuscript:  Special Section PAPER (Special Issue on Personal, Indoor and Mobile Radio Communications)
Category: 
Keyword: 
mobile radioW-CDMA2-Mbps data transmissionantenna diversityTPC
 Summary | Full Text:PDF(1.5MB)

Challenges of Wireless Communications--IMT-2000 and Beyond--
Fumiyuki ADACHI Nobuo NAKAJIMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2000/07/25
Vol. E83-A  No. 7  pp. 1300-1307
Type of Manuscript:  INVITED PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
wireless communicationsmobile communications systemsIMT-2000DS-CDMA
 Summary | Full Text:PDF(1.3MB)

Capacity Estimation for Overlaid Multiband CDMA Systems with SIR-Based Power Control
Duk Kyung KIM Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/07/25
Vol. E83-B  No. 7  pp. 1454-1464
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
overlaid multiband CDMA systemsSIR-based power controlraised cosine filtered chip pulse
 Summary | Full Text:PDF(706.2KB)

Effect of Fast Transmit Power Control on Forward Link Capacity of DS-CDMA Cellular Mobile Radio
Fumio KIKUCHI Hirohito SUDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/01/25
Vol. E83-B  No. 1  pp. 47-55
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
fast TPCforward link capacityDS-CDMAmobile radio
 Summary | Full Text:PDF(1MB)

Capacity Evaluation of a Forward Link DS-CDMA Cellular System with Fast TPC Based on SIR
Dugin LYU Hirohito SUDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/01/25
Vol. E83-B  No. 1  pp. 68-76
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
link capacityDS-CDMA cellular systemfast TPC based on SIRRAKE receiveroutage probability
 Summary | Full Text:PDF(901KB)

Effect of Spreading Bandwidth on DS-CDMA Reverse Link Capacity
Hirohito SUDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/12/25
Vol. E82-B  No. 12  pp. 2160-2163
Type of Manuscript:  LETTER
Category: Mobile Communication
Keyword: 
DS/CDMAmobile radiocapacityspreading bandwidthreverse link
 Summary | Full Text:PDF(214.4KB)

Adaptive Channel Estimation for Coherent DS-CDMA Mobile Radio Using Time-Multiplexed Pilot and Parallel Pilot Structures
Sadayuki ABETA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/09/25
Vol. E82-B  No. 9  pp. 1505-1513
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
adaptive channel estimationDS/CDMApilot channelcoherent RAKE
 Summary | Full Text:PDF(569.8KB)

A Fast Transmit Power Control Based on Markov Transition for DS-CDMA Mobile Radio
Hirohito SUDA Hiroyuki KAWAI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/08/25
Vol. E82-B  No. 8  pp. 1353-1362
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
fast TPCMarkov transitionDS/CDMAmobile radio
 Summary | Full Text:PDF(1.2MB)

Adaptive Reduced State-Transition Viterbi Differential Detection of M-Ary DPSK Signals Transmitted over Gaussian and Frequency Nonselective Rayleigh Faded Channels
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/01/25
Vol. E82-B  No. 1  pp. 156-164
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
M-ary DPSKdifferential detectionViterbi algorithmfadingadaptive channel estimation
 Summary | Full Text:PDF(819.7KB)

Promising Techniques to Enhance Radio Link Performance of Wideband Wireless Access Based on DS-CDMA
Fumiyuki ADACHI Mamoru SAWAHASHI Hirohito SUDA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/11/25
Vol. E81-A  No. 11  pp. 2242-2250
Type of Manuscript:  INVITED PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
DS-CDMAwireless accessmobile communications
 Summary | Full Text:PDF(830.9KB)

Turbo Codes Application to DS-CDMA Mobile Radio
Atsushi FUJIWARA Hirohito SUDA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1998/11/25
Vol. E81-A  No. 11  pp. 2269-2273
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
turbo codesDS-CDMAmobile radiofading channel
 Summary | Full Text:PDF(514.6KB)

Wideband Wireless Access Based on DS-CDMA
Fumiyuki ADACHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1305-1316
Type of Manuscript:  INVITED PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
DS-CDMAwideband wireless accessmobile communications
 Summary | Full Text:PDF(1MB)

Fast Cell Search Algorithm in Inter-Cell Asynchronous DS-CDMA Mobile Radio
Kenichi HIGUCHI Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1527-1534
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
cell searchinter-cell asynchronous systemDS-CDMAmobile radio
 Summary | Full Text:PDF(722.4KB)

SIR-Based Transmit Power Control of Reverse Link for Coherent DS-CDMA Mobile Radio
Shunsuke SEO Tomohiro DOHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1508-1516
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
transmit power controlreverse linkDS-CDMAmobile radio
 Summary | Full Text:PDF(799.8KB)

Coherent Delay-Locked Code Tracking Loop Using Time-Multiplexed Pilot for DS-CDMA Mobile Radio
Mamoru SAWAHASHI Fumiyuki ADACHI Heiichi YAMAMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1426-1432
Type of Manuscript:  Special Section PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
delay-locked loopDS-CDMAmobile radio
 Summary | Full Text:PDF(525.1KB)

Performance Comparison between Time-Multiplexed Pilot Channel and Parallel Pilot Channel for Coherent Rake Combining in DS-CDMA Mobile Radio
Sadayuki ABETA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1417-1425
Type of Manuscript:  Special Section PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
DS-CDMAchannel estimationpilot channeltransmitter power control
 Summary | Full Text:PDF(701.7KB)

Matched Filter-Based RAKE Combiner for Wideband DS-CDMA Mobile Radio
Satoru FUKUMOTO Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1384-1391
Type of Manuscript:  Special Section PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
mobile radio communicationDS-CDMAmatched filterRAKE combining
 Summary | Full Text:PDF(575.4KB)

Variable-Rate Data Transmission with Blind Rate Detection for Coherent DS-CDMA Mobile Radio
Yukihiko OKUMURA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1365-1373
Type of Manuscript:  Special Section PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
DS-CDMAvariable-rate transmissionblind rate detection
 Summary | Full Text:PDF(703.1KB)

Channel Estimation Filter Using Time-Multiplexed Pilot Channel for Coherent RAKE Combining in DS-CDMA Mobile Radio
Hidehiro ANDOH Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1517-1526
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
DS-CDMAmobile radiochannel estimationRAKE combining
 Summary | Full Text:PDF(812.7KB)

1. 92 Mbps Data Transmission Experiments over a Coherent W-CDMA Radio Link
Koichi OKAWA Yukihiko OKUMURA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/07/25
Vol. E81-B  No. 7  pp. 1330-1336
Type of Manuscript:  Special Section PAPER (Special Issue on Third Generation Land Mobile Communication Systems)
Category: 
Keyword: 
wideband CDMAmobile radioorthogonal multicode transmission
 Summary | Full Text:PDF(648.5KB)

Further Results on Field Experiments of Coherent Wideband DS-CDMA Mobile Radio
Tomohiro DOHI Yukihiko OKUMURA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/06/25
Vol. E81-B  No. 6  pp. 1239-1247
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
DS-CDMAmobile radioreverse linktransmit power controlantenna diversityRake combining
 Summary | Full Text:PDF(790.6KB)

Orthogonal Forward Link Using Orthogonal Multi-Spreading Factor Codes for Coherent DS-CDMA Mobile Radio
Koichi OKAWA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1998/04/25
Vol. E81-B  No. 4  pp. 777-784
Type of Manuscript:  PAPER
Category: Mobile Communication
Keyword: 
DS-CDMAforward linkorthogonal spreading codesmobile radio
 Summary | Full Text:PDF(658.9KB)

Pilot Symbol-Assisted Decision-Directed Coherent Adaptive Array Diversity for DS-CDMA Mobile Radio Reverse Link
Shinya TANAKA Mamoru SAWAHASHI Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/12/25
Vol. E80-A  No. 12  pp. 2445-2454
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
adaptive antenna arrayDS-CDMAmobile radio
 Summary | Full Text:PDF(782.7KB)

Transmit Power Efficiency of Fast Transmit Power Controlled DS-CDMA Reverse Link
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1997/12/25
Vol. E80-A  No. 12  pp. 2420-2428
Type of Manuscript:  Special Section PAPER (Special Section on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
reverse linkDS-CDMAmobile radiotransmit power controlRake combining
 Summary | Full Text:PDF(639.3KB)

Effects of Orthogonal Spreading and Rake Combining on DS-CDMA forward Link in Mobile Radio
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/11/25
Vol. E80-B  No. 11  pp. 1703-1712
Type of Manuscript:  PAPER
Category: Radio Communication
Keyword: 
mobile radioDS CDMAorthogonal spreadingRake combining
 Summary | Full Text:PDF(728.4KB)

Rake Combining Effect on Link Capacity and Peak Transmit Power of Power-Controlled Reverse Link of DS-CDMA Cellular Mobile Radio
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/10/25
Vol. E80-B  No. 10  pp. 1547-1555
Type of Manuscript:  PAPER
Category: Radio Communication
Keyword: 
cellular mobile radioDS-CDMAreverse linkpower controlRake combining
 Summary | Full Text:PDF(669.9KB)

Adaptive Maximum Likelihood Detection of MPSK Signals in Frequency Nonselective Fast Rayleigh Fading
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/07/25
Vol. E80-B  No. 7  pp. 1045-1054
Type of Manuscript:  PAPER
Category: Radio Communication
Keyword: 
maximum likelihood detectionadaptive channel estimationRayleigh fading
 Summary | Full Text:PDF(736.2KB)

Performance Analysis of Approximate ML Detection of MPSK Signals Transmitted over AWGN Channels
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1997/05/25
Vol. E80-B  No. 5  pp. 726-735
Type of Manuscript:  PAPER
Category: Communication Theory
Keyword: 
maximum likelihood detectionM-ary Phase Shift Keying (MPSK)coherent detectionViterbi algorithm
 Summary | Full Text:PDF(635.9KB)

Low-Power Consuming Analog-Type Matched Filter for DS-CDMA Mobile Radio
Mamoru SAWAHASHI Fumiyuki ADACHI Guoliang SHOU Changming ZHOU 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/12/25
Vol. E79-A  No. 12  pp. 2071-2077
Type of Manuscript:  Special Section PAPER (Special Secton on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
DS-CDMAmatched filteranalog signal processing
 Summary | Full Text:PDF(616.5KB)

Theoretical Analysis of DS-CDMA Reverse Link Capacity with SIR-Based Transmit Power Control
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1996/12/25
Vol. E79-A  No. 12  pp. 2028-2034
Type of Manuscript:  Special Section PAPER (Special Secton on Spread Spectrum Techniques and Applications)
Category: 
Keyword: 
DS-CDMAtransmit power controllink capacityspectrum sharing
 Summary | Full Text:PDF(551.7KB)

Experiments on Coherent Multicode DS-CDMA
Tomohiro DOHI Yukihiko OKUMURA Akihiro HIGASHI Koji OHNO Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1996/09/25
Vol. E79-B  No. 9  pp. 1326-1332
Type of Manuscript:  Special Section PAPER (Special Issue on Personal Communications)
Category: CDMA and multiple access technologies
Keyword: 
DS-CDMApilot symbol-aided coherent RAKEinterference power measurement based power controlorthogonal multicode transmissiontest-bedfield test
 Summary | Full Text:PDF(614.4KB)

Effects of Non-matched Receiver Filters on π/4-DQPSK Bit Error Rate in Rayleigh Fading
Chun Sum NG Tjeng Thiang TJHUNG Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/06/25
Vol. E77-B  No. 6  pp. 800-807
Type of Manuscript:  PAPER
Category: Radio Communication
Keyword: 
radio communicationcellular mobile radioRayleigh fadingbit error rate
 Summary | Full Text:PDF(519.6KB)

Combined Convolutional Coding/Diversity Reception for QDPSK Land Mobile Radio
Tadashi MATSUMOTO Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1991/06/25
Vol. E74-B  No. 6  pp. 1522-1530
Type of Manuscript:  INVITED PAPER (Special Issue on Mobile Communications)
Category: 
Keyword: 
 Summary | Full Text:PDF(644.4KB)

Scanning Diversity Effect on Channel Reuse in a Digital FM Cellular Land Mobile Radio
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1983/07/25
Vol. E66-E  No. 7  pp. 453-454
Type of Manuscript:  LETTER
Category: Diversity Reception
Keyword: 
 Summary | Full Text:PDF(128.5KB)

Advanced Scanning Diversity for a Digital FM Land Mobile Radio
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1983/05/25
Vol. E66-E  No. 5  pp. 283-289
Type of Manuscript:  PAPER
Category: Diversity Reception
Keyword: 
 Summary | Full Text:PDF(442.1KB)

Experimental Results of Dual Scanning Diversity System
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1983/02/25
Vol. E66-E  No. 2  pp. 159-160
Type of Manuscript:  LETTER
Category: Mobile Radio
Keyword: 
 Summary | Full Text:PDF(115.4KB)

Improvement Effect of Scanning Diversity Reception on Cochannel Interference Performance of a Digital FM Land Mobile Radio
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1982/07/25
Vol. E65-E  No. 7  pp. 409-410
Type of Manuscript:  LETTER
Category: Miscellaneous
Keyword: 
 Summary | Full Text:PDF(140.9KB)

Selection and Scanning Diversity Effects in a Digital FM Land Mobile Radio with Limiter Discriminator Detection
Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1981/06/25
Vol. E64-E  No. 6  pp. 398-405
Type of Manuscript:  PAPER
Category: Miscellaneous
Keyword: 
 Summary | Full Text:PDF(503KB)

Error-Rate Performance of Digital FM with Discriminator-Detection in the Presence of Co-channel Interference under Fast Rayleigh Fading Environment
Kenkichi HIRADE Mitsuru ISHIZUKA Fumiyuki ADACHI 
Publication:   IEICE TRANSACTIONS (1976-1990)
Publication Date: 1978/09/25
Vol. E61-E  No. 9  pp. 704-709
Type of Manuscript:  PAPER
Category: Transmission Systems
Keyword: 
 Summary | Full Text:PDF(322KB)