Hiroshi HARADA


IEEE 802.15.4g Based Wi-SUN Communication Systems
Hiroshi HARADA Keiichi MIZUTANI Jun FUJIWARA Kentaro MOCHIZUKI Kentaro OBATA Ryota OKUMURA 
Publication:   
Publication Date: 2017/07/01
Vol. E100-B  No. 7  pp. 1032-1043
Type of Manuscript:  INVITED PAPER (Special Section on Smart Radio and Its Applications in Conjunction with Main Topics of SmartCom)
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
IEEE 802.15.4gWi-SUNmobile communicationsensor networksmart utility network
 Summary | Full Text:PDF(4.5MB)

Low Overhead Query Method for the Interface between Geo-Location Database and Secondary User
Ha-Nguyen TRAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/04/01
Vol. E98-B  No. 4  pp. 714-722
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
white spacecognitive radiogeo-location databaseavailable channelpolygons intersection
 Summary | Full Text:PDF(843.1KB)

Numerical Verification of Expression for Current Distribution on a Dipole through Port Current and Port Voltage
Kyoichi IIGUSA Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/02/01
Vol. E98-B  No. 2  pp. 303-316
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
current distributiondipolephaseport voltage
 Summary | Full Text:PDF(3.3MB)

IEEE 802.11af TVWS-WLAN with Partial Subcarrier System for Effective TVWS Utilization
Keiichi MIZUTANI Zhou LAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/04/01
Vol. E97-B  No. 4  pp. 886-895
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
TV white spaces (TVWS)IEEE 802.11afOFDMpartial subcarrier system
 Summary | Full Text:PDF(2.5MB)

Time-Domain Windowing Design for IEEE 802.11af Based TVWS-WLAN Systems to Suppress Out-of-Band Emission
Keiichi MIZUTANI Zhou LAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/04/01
Vol. E97-B  No. 4  pp. 875-885
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
TV white spaces (TVWS)IEEE 802.11afOFDMtime-domain windowingdigital convolution filterspectrum mask
 Summary | Full Text:PDF(2.7MB)

A Prototype of TV White Space Spectrum Sensing and Power Measurement
Chunyi SONG Takeshi MATSUMURA Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/02/01
Vol. E97-B  No. 2  pp. 314-325
Type of Manuscript:  Special Section PAPER (Special Section on Technologies for Effective Utilization of Spectrum White Space)
Category: 
Keyword: 
sensing prototypeFCC sensing requirementsphysical featurescost performance ratio
 Summary | Full Text:PDF(3MB)

White Space Communication Systems: An Overview of Regulation, Standardization and Trial
Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/02/01
Vol. E97-B  No. 2  pp. 261-274
Type of Manuscript:  INVITED PAPER (Special Section on Technologies for Effective Utilization of Spectrum White Space)
Category: 
Keyword: 
white spaceIEEEcognitive radiodatabasestandardization
 Summary | Full Text:PDF(7.6MB)

Implementation and Performance Evaluation of a Distributed TV White Space Sensing System
Ha-Nguyen TRAN Yohannes D. ALEMSEGED Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/02/01
Vol. E97-B  No. 2  pp. 305-313
Type of Manuscript:  Special Section PAPER (Special Section on Technologies for Effective Utilization of Spectrum White Space)
Category: 
Keyword: 
distributed spectrum sensingTV white spaceimplementationsystem designperformance evaluation
 Summary | Full Text:PDF(2MB)

Feasibility of Guard Band Utilization for Cognitive Radio Using TV White Space
Noriyuki YAGINUMA Masahiro UMEHIRA Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/02/01
Vol. E97-B  No. 2  pp. 343-349
Type of Manuscript:  Special Section PAPER (Special Section on Technologies for Effective Utilization of Spectrum White Space)
Category: 
Keyword: 
Cognitive RadioWhite SpaceISDB-TGuard Band
 Summary | Full Text:PDF(2.3MB)

Design of the Start-Frame-Delimiter Pair for 802.15 Smart Utility Network System
Liru LU Hiroshi HARADA Ryuhei FUNADA Chin-Sean SUM 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/03/01
Vol. E96-B  No. 3  pp. 730-736
Type of Manuscript:  PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
synchronizationstart-frame-delimitercorrelatorsmart utility networks
 Summary | Full Text:PDF(1.4MB)

The Impact of Sub-Band Spreading Bandwidth on DS-MB-UWB System over Multipath and Narrowband Interference
Chin-Sean SUM Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/03/01
Vol. E96-A  No. 3  pp. 740-744
Type of Manuscript:  LETTER
Category: Spread Spectrum Technologies and Applications
Keyword: 
sub-band spreading bandwidthDS-MB-UWBmultipath interferencenarrowband interference
 Summary | Full Text:PDF(356.2KB)

Proposal and Hardware Performance of an Enhanced Feature Detection Method for OFDM Signals of Digital TV Standards
Chunyi SONG Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/03/01
Vol. E96-B  No. 3  pp. 859-868
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
DTV sensingpilotslow SNRhardware implementation
 Summary | Full Text:PDF(1.8MB)

Hidden Node due to Multiple Transmission Power Level for White Space Radio Operating in the TV Bands
Chin-Sean SUM Gabriel Porto VILLARDI Mohammad Azizur RAHMAN Junyi WANG Zhou LAN Chunyi SONG Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2012/10/01
Vol. E95-A  No. 10  pp. 1749-1758
Type of Manuscript:  PAPER
Category: Communication Theory and Signals
Keyword: 
hidden nodeTV white spacemultiple transmit powerFCC
 Summary | Full Text:PDF(1.6MB)

Sensing Methods for Detecting Analog Television Signals
Mohammad Azizur RAHMAN Chunyi SONG Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1066-1075
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
white spacespectrum sensinganalog televisioncognitive radio
 Summary | Full Text:PDF(1.3MB)

A Complete Design of Coexistence Information Service for Autonomous Decision-Making Systems in TV White Space
Junyi WANG Stanislav FILIN Tuncer BAYKAS Mohammad Azizur RAHMAN Chunyi SONG Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1230-1240
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
coexistenceinformation serviceprotocolTVWSautonomous decision-makingdissimilar networks
 Summary | Full Text:PDF(1.5MB)

Autonomous Throughput Improvement Scheme Using Machine Learning Algorithms for Heterogeneous Wireless Networks Aggregation
Yohsuke KON Kazuki HASHIGUCHI Masato ITO Mikio HASEGAWA Kentaro ISHIZU Homare MURAKAMI Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1143-1151
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
heterogeneous wireless networkslink aggregationmachine learning algorithm support vector machinescognitive radio
 Summary | Full Text:PDF(1.3MB)

Proposal and Implementation of a Robust Sensing Method for DVB-T Signal
Chunyi SONG Mohammad Azizur RAHMAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1276-1285
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
spectrum sensingDVB-Tthreshold settinghardware implementation
 Summary | Full Text:PDF(2MB)

Design and Implementation of IEEE 1900.4 Architecture Using IMS Functionality
Homare MURAKAMI Kentaro ISHIZU Stanislav FILIN Hiroshi HARADA Mikio HASEGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1266-1275
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
cognitive radioIEEE 1900.4IMSsignalingradio resource management
 Summary | Full Text:PDF(1.3MB)

A Distributed Sensing and Caching Database for Cognitive Radio Systems
Ha-Nguyen TRAN Chen SUN Yohannes D. ALEMSEGED Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/01/01
Vol. E95-B  No. 1  pp. 217-225
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
regulatory databasesensing databasedistributed sensingcognitive radio
 Summary | Full Text:PDF(786.7KB)

Interference Mitigation Capability of a Low Duty DS-Multiband-UWB System in Realistic Environment
Chin-Sean SUM Shigenobu SASAKI Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2011/12/01
Vol. E94-A  No. 12  pp. 2762-2772
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
interference mitigationDS-MB-UWBsub-band power suppressionlow duty factornarrowband interferencemultipathmulti-user
 Summary | Full Text:PDF(832.2KB)

MAC Development and Enhancement of IEEE 802.15.3c WPAN Realizing Gbps Throughput
Chang-Woo PYO Zhou LAN Fumihide KOJIMA Ryuhei FUNADA Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/11/01
Vol. E94-B  No. 11  pp. 3065-3076
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
GbpsIEEE 802.15.3cMAC throughputWPAN
 Summary | Full Text:PDF(2.4MB)

Enhanced Media Access Scheme for Distributed Spectrum Sensing
Yohannes D. ALEMSEGED Chen SUN Ha NGUYEN TRAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3266-3273
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
distributed spectrum sensingspectrum sensingenergy detectionmedia access control scheme
 Summary | Full Text:PDF(746.2KB)

Coexistence of Dynamic Spectrum Access Based Heterogeneous Networks
Chen SUN Yohannes D. ALEMSEGED HaNguyen TRAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3293-3301
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
heterogeneous networkscognitive radio system (CRS)dynamic spectrum access (DSA)coexistencearchitecturehidden nodequality of coexistence (QoC)
 Summary | Full Text:PDF(711.9KB)

Prioritized Aggregation for Compressed Video Streaming on mmWave WPAN Systems
Zhou LAN Chin Sean SUM Junyi WANG Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/12/01
Vol. E93-A  No. 12  pp. 2704-2707
Type of Manuscript:  Special Section LETTER (Special Section on Wideband Systems)
Category: 
Keyword: 
frame aggregationcompressed video transmissionmmWave WPAN
 Summary | Full Text:PDF(333.2KB)

On Communication and Interference Range of Multi-Gbps Millimeter-Wave WPAN System
Chin-Sean SUM Zhou LAN Junyi WANG Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/12/01
Vol. E93-A  No. 12  pp. 2700-2703
Type of Manuscript:  Special Section LETTER (Special Section on Wideband Systems)
Category: 
Keyword: 
interference rangecommunication rangemillimeter-wavemulti-gigabitWPAN
 Summary | Full Text:PDF(227.6KB)

Analysis of Primary Signal Detection Period in Cognitive Wireless Communications
Chang-Woo PYO Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3501-3504
Type of Manuscript:  Special Section LETTER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
cognitive wireless communicationsprimary signal detectionquiet period
 Summary | Full Text:PDF(355.6KB)

A Channel-Hopping MAC Protocol for Cognitive IEEE 802.16d Mesh Networks
Ming-Tuo ZHOU Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3417-3428
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
cognitive radiomesh networkIEEE 802.16cognitive mesh networkchannel-hopping MAC protocol
 Summary | Full Text:PDF(1.3MB)

Cognitive Wireless Router System by Distributed Management of Heterogeneous Wireless Networks
Kentaro ISHIZU Homare MURAKAMI Stanislav FILIN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/12/01
Vol. E93-B  No. 12  pp. 3311-3322
Type of Manuscript:  Special Section PAPER (Special Section on Wireless Distributed Networks)
Category: 
Keyword: 
cognitive radio networkheterogeneous wireless networkdistributed managementcognitive wireless router
 Summary | Full Text:PDF(3.1MB)

Impact of Chip Duty Factor on DS, TH and DS-TH UWB Systems in Realistic Environment
Chin-Sean SUM Shigenobu SASAKI Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/10/01
Vol. E93-A  No. 10  pp. 1716-1723
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: UWB System
Keyword: 
UWBchip duty factorDSTHDS-THenergy capture
 Summary | Full Text:PDF(494.3KB)

Throughput Comparison of Hybrid Slotted CSMA/CA-TDMA and Slotted CSMA/CA in IEEE 802.15.3c WPAN
Chang-Woo PYO Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2010/08/01
Vol. E93-A  No. 8  pp. 1531-1543
Type of Manuscript:  PAPER
Category: Mobile Information Network and Personal Communications
Keyword: 
IEEE 802.15.3c WPANmultiple accesshybrid slotted CSMA/CA and TDMAslotted CSMA/CA
 Summary | Full Text:PDF(1.2MB)

Numerical Throughput Analysis on Channel Interference in IEEE 802.15.3c WPAN Based on Hybrid Multiple Access of CSMA/CA-TDMA
Chang-Woo PYO Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2010/06/01
Vol. E93-B  No. 6  pp. 1502-1514
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
IEEE 802.15.3cWPANchannel interferencehidden networkshybrid CSMA/CA-TDMA
 Summary | Full Text:PDF(783.1KB)

Spectrum Sensing Architecture and Use Case Study: Distributed Sensing over Rayleigh Fading Channels
Chen SUN Yohannes D. ALEMSEGED Ha Nguyen TRAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3606-3615
Type of Manuscript:  Special Section PAPER (Special Section on Dynamic Spectrum Access)
Category: Spectrum Sensing
Keyword: 
spectrum sensingcognitive radiocooperative sensingcollaborative sensingselective sensingenergy detectionRayleigh fadingdiversity
 Summary | Full Text:PDF(572.5KB)

0.4-5.8 GHz SiGe-MMIC Quadrature Modulator Employing Self Current Controlled Mixer for Cognitive Radio
Shintaro SHINJO Fumiki ONOMA Koji TSUTSUMI Noriharu SUEMATSU Mitsuhiro SHIMOZAWA Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3701-3710
Type of Manuscript:  Special Section PAPER (Special Section on Dynamic Spectrum Access)
Category: Wideband RF Systems
Keyword: 
microwaveMMIC transmittersMMIC mixersmobile communicationmodulationwireless LAN
 Summary | Full Text:PDF(1.3MB)

Robust Spectrum Sensing Algorithms for Cognitive Radio Application by Using Distributed Sensors
Yohannes D. ALEMSEGED Chen SUN Ha Nguyen TRAN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3616-3624
Type of Manuscript:  Special Section PAPER (Special Section on Dynamic Spectrum Access)
Category: Spectrum Sensing
Keyword: 
cognitive radiospectrum sensordistributed sensingparallel sensingcooperative sensinggateway assisted sensingtwo-stage detectionhard information combining (HC)soft information combining (SC)
 Summary | Full Text:PDF(503KB)

Error Probability of MRC in Frequency Selective Nakagami Fading in the Presence of CCI and ACI
Mohammad Azizur RAHMAN Chin-Sean SUM Ryuhei FUNADA Shigenobu SASAKI Tuncer BAYKAS Junyi WANG Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/11/01
Vol. E92-A  No. 11  pp. 2679-2687
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
maximal ratio combining (MRC)frequency selective Nakagami fadinginter-symbol interference (ISI)co-channel interference (CCI)adjacent channel interference (ACI)
 Summary | Full Text:PDF(469.5KB)

Throughput and Error Analysis of a Space-Time Resource Management Scheme for Multi-Gbps Millimeter-Wave WPAN System
Chin-Sean SUM Mohammad Azizur RAHMAN Zhou LAN Ryuhei FUNADA Junyi WANG Tuncer BAYKAS Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/11/01
Vol. E92-A  No. 11  pp. 2659-2668
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
space-timeresource managementmillimeter-wavemulti-GbpsWPANcross layer
 Summary | Full Text:PDF(832.3KB)

FOREWORD
Hiroshi HARADA Panagiotis DEMESTICHAS 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/09/01
Vol. E92-A  No. 9  pp. 2157-2158
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(71.5KB)

Error Analysis of Hybrid DS-Multiband-UWB Multiple Access System in the Presence of Narrowband Interference
Chin-Sean SUM Mohammad Azizur RAHMAN Shigenobu SASAKI Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2009/09/01
Vol. E92-A  No. 9  pp. 2167-2176
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Ultra Wideband System
Keyword: 
error analysisDS-Multiband-UWBmultiple access interferencemultipath interferencenarrowband interferencerake receiver
 Summary | Full Text:PDF(774.6KB)

A Simple Exact Error Rate Analysis for DS-CDMA with Arbitrary Pulse Shape in Flat Nakagami Fading
Mohammad Azizur RAHMAN Shigenobu SASAKI Hisakazu KIKUCHI Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1808-1812
Type of Manuscript:  Special Section LETTER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
DS-CDMAmulti-access communicationerror rate analysisNakagami fading
 Summary | Full Text:PDF(172.2KB)

Exact Error Rate Analysis for Pulsed DS- and Hybrid DS/TH-CDMA in Nakagami Fading
Mohammad Azizur RAHMAN Shigenobu SASAKI Hisakazu KIKUCHI Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2008/11/01
Vol. E91-A  No. 11  pp. 3150-3162
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
ultra-widebandcode division multiple accesserror rate analysisNakagami fading
 Summary | Full Text:PDF(642.7KB)

FOREWORD
Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 1-1
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(56.9KB)

Introduction to IEEE P1900.4 Activities
Soodesh BULJORE Markus MUCK Patricia MARTIGNE Paul HOUZE Hiroshi HARADA Kentaro ISHIZU Oliver HOLLAND Andrej MIHAILOVIC Kostas A. TSAGKARIS Oriol SALLENT Gary CLEMO Mahesh SOORIYABANDARA Vladimir IVANOV Klaus NOLTE Makis STAMETALOS 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 2-9
Type of Manuscript:  INVITED PAPER (Special Section on Cognitive Radio and Spectrum Sharing Technology)
Category: 
Keyword: 
IEEE standardizationcognitive radionetwork architecturereconfigurationheterogeneous radio access networksdistributed radio resource management
 Summary | Full Text:PDF(1008.3KB)

A Novel Method of Estimating the Signal-to-Interference Ratio for One-Cell-Frequency-Reuse OF/TDMA Systems
Masafumi MORIYAMA Hiroshi HARADA Seiichi SAMPEI Ryuhei FUNADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 247-257
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OF/TDMAone-cell-frequency-reuseSIRAMCMIMOcarrier interferometry
 Summary | Full Text:PDF(1.8MB)

Autonomous and Decentralized Optimization of Large-Scale Heterogeneous Wireless Networks by Neural Network Dynamics
Mikio HASEGAWA Ha Nguyen TRAN Goh MIYAMOTO Yoshitoshi MURATA Hiroshi HARADA Shuzo KATO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 110-118
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Spectrum Sharing Technology)
Category: Distributed Optimization
Keyword: 
cognitive radioheterogeneous wireless networksneural networksradio resource managementradio access technology selection
 Summary | Full Text:PDF(809.8KB)

Low-Loading-Delay Parallel Adaptive Loading for Reducing Transmit Power of OFDM System
Ming LEI Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/07/01
Vol. E90-A  No. 7  pp. 1300-1311
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
orthogonal frequency division multiplexing (OFDM)adaptive loading
 Summary | Full Text:PDF(1.9MB)

A Carrier Interferometry Based Channel Estimation Technique for MIMO-OFDM/TDMA Systems
Kazunari YOKOMAKURA Seiichi SAMPEI Hiroshi HARADA Norihiko MORINAGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/05/01
Vol. E90-B  No. 5  pp. 1181-1192
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DPC-OF/TDMA systemsMIMO-OFDM/TDMA systemschannel estimationcarrier interferometrytime window
 Summary | Full Text:PDF(975.3KB)

Reduced-Complexity Detection for DPC-OF/TDMA System Enhanced by Multi-Layer MIMO-OFDM in Wireless Multimedia Communications
Ming LEI Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2007/03/01
Vol. E90-A  No. 3  pp. 571-580
Type of Manuscript:  Special Section PAPER (Special Section on Multimedia and Mobile Signal Processing)
Category: Communications
Keyword: 
MIMOOFDMMulti-Layer MIMO-OFDMReduced-Complexity DetectionDPC-OF/TDMA
 Summary | Full Text:PDF(867KB)

Reducing Detection Complexity of MIMO-OFDM by Using New Nulling Vectors
Ming LEI Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/02/01
Vol. E90-B  No. 2  pp. 392-396
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
MIMOOFDMV-BLASTnulling vector
 Summary | Full Text:PDF(213.7KB)

MIMO-OFDM Based Evolution Schemes for DPC-OF/TDMA
Ming LEI Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2007/02/01
Vol. E90-B  No. 2  pp. 239-250
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
DPC-OF/TDMAMIMOOFDMV-BLASTSTBC
 Summary | Full Text:PDF(1.4MB)

FOREWORD
Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/12/01
Vol. E89-B  No. 12  pp. 3167-3167
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(57.9KB)

Implementation of Multi-Channel Modem for DSRC System on Signal Processing Platform for Software Defined Radio
Akihisa YOKOYAMA Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/12/01
Vol. E89-B  No. 12  pp. 3225-3232
Type of Manuscript:  Special Section PAPER (Special Section on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radiosignal processingFPGAITSDSRC
 Summary | Full Text:PDF(927.9KB)

Cyclic Shifted-and-Extended Codes Based on a Quasi-Orthogonal Sequence for a CDM Transmission Scheme
Kazuyuki SHIMEZAWA Hiroshi HARADA Hiroshi SHIRAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/11/01
Vol. E89-B  No. 11  pp. 2998-3007
Type of Manuscript:  PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
zero cross-correlationQuasi-Orthogonal sequenceRake combiningcyclic shifted-and-extended codescode division multiplexing
 Summary | Full Text:PDF(619.8KB)

A Complexity-Reduced Time Alignment Control in Uplink Dynamic Parameter Controlled OF/TDMA
Ryota KIMURA Ryuhei FUNADA Hiroshi HARADA Shigeru SHIMAMOTO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/08/01
Vol. E89-B  No. 8  pp. 2196-2207
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
orthogonal frequency division multiple access (OFDMA)dynamic parameter controlled orthogonal frequency and time division multiple access (DPC-OF/TDMA)propagation delaytime alignment controltiming synchronizationcomplexity reduction
 Summary | Full Text:PDF(1006.5KB)

SMI Adaptive Beamforming Based on Frequency-to-Time Pilot Transform for OFDM System
Ming LEI Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/08/01
Vol. E89-B  No. 8  pp. 2261-2265
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDMadaptive antenna arraysample matrix inverse (SMI)adaptive beamforming
 Summary | Full Text:PDF(272.4KB)

Superimposed Frequency Symbol Based Adaptive Downlink OFDM with Frequency Spreading and Equalization
Chang-Jun AHN Hiroshi HARADA Yukiyoshi KAMIO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/02/01
Vol. E89-B  No. 2  pp. 500-508
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
AMS/OFDMfrequency symbol spreadingfrequency equalizationMMSECORC
 Summary | Full Text:PDF(660KB)

Stochastic Method of Determining Substream Modulation Levels for MIMO Eigenbeam Space Division Multiplexing
Satoshi TAKAHASHI Chang-Jun AHN Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2006/01/01
Vol. E89-B  No. 1  pp. 142-149
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
mobile radio propagationadaptive modulationmultipath environmentsray tracingMIMOE-SDM
 Summary | Full Text:PDF(464.2KB)

A Reconfigurable Packet Routing-Oriented Signal Processing Platform
Akihisa YOKOYAMA Hitoshi INOUE Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/11/01
Vol. E88-B  No. 11  pp. 4194-4203
Type of Manuscript:  Special Section PAPER (Special Section on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radiosignal processingFPGADSRC
 Summary | Full Text:PDF(1.9MB)

FOREWORD
Hiroshi HARADA Alistair MUNRO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/07/01
Vol. E88-A  No. 7  pp. 1771-1771
Type of Manuscript:  FOREWORD
Category: 
Keyword: 
 Summary | Full Text:PDF(54.9KB)

Effect of Delay Spread Enhancement in MIMO Eigenbeam Space Division Multiplexing Transmission
Satoshi TAKAHASHI Chang-Jun AHN Hiroshi HARADA Yukiyoshi KAMIO 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/07/01
Vol. E88-A  No. 7  pp. 1931-1935
Type of Manuscript:  Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
radio propagationdelay spreadMIMOE-SDM
 Summary | Full Text:PDF(392.6KB)

A Timing Synchronization Method with Low-Volume DSP for OFDM Packet Transmission Systems
Ryota KIMURA Ryuhei FUNADA Hiroshi HARADA Manabu SAWADA Shoji SHINODA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/07/01
Vol. E88-A  No. 7  pp. 1912-1920
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Wireless Communication Technology
Keyword: 
OFDMtiming synchronizationpacket transmission systemDSP
 Summary | Full Text:PDF(1004KB)

Adaptive Subcarrier Block Modulation with Differentially Modulated Pilot Symbol Assistance for Downlink OFDM Using Uplink Delay Spread
Chang-Jun AHN Satoshi TAKAHASHI Hiroshi HARADA Yukiyoshi KAMIO Iwao SASASE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2005/07/01
Vol. E88-A  No. 7  pp. 1889-1896
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: Wireless Communication Technology
Keyword: 
DMPSA-ASMS/OFDMMLIcoherence bandwidthRMS delay spread
 Summary | Full Text:PDF(592.2KB)

Subband Selection and Handover of OFDMA System over Frequency Selective Channel
Jianfeng QIANG Hiroshi HARADA Hiromitsu WAKANA Ping ZHANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/04/01
Vol. E88-B  No. 4  pp. 1718-1724
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
OFDMAfrequency selective fading channelsubband selectionaverage subband channel gainsubband handover
 Summary | Full Text:PDF(465.8KB)

Differential Modulated Pilot Symbol Assisted Adaptive OFDM for Reducing the MLI with Predicted FBI
Chang-Jun AHN Satoshi TAKAHASHI Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 436-442
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part2)
Category: 
Keyword: 
AMS/OFDMMLIFBI
 Summary | Full Text:PDF(520.1KB)

Performance Evaluation of Time Alignment Control under High-Mobility Environment for Dynamic Parameter Controlled OF/TDMA
Ryota KIMURA Ryuhei FUNADA Hiroshi HARADA Shoji SHINODA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 541-551
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part2)
Category: 
Keyword: 
OFDMAdynamic parameter controlled OF/TDMAtime alignment controltiming synchronizationmultiple access interferenceinitial registration
 Summary | Full Text:PDF(638KB)

An OFDM Based Adaptive Modulation Scheme Employing Variable Coding Rate
Toshiyuki NAKANISHI Seiichi SAMPEI Hiroshi HARADA Norihiko MORINAGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 526-534
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part2)
Category: 
Keyword: 
DPC-OF/TDMAadaptive modulation schemevariable coding ratebit loadinginter-cell interference
 Summary | Full Text:PDF(712.9KB)

A Channel Estimation Method for a Highly Mobile OFDM Wireless Access System
Ryuhei FUNADA Hiroshi HARADA Yukiyoshi KAMIO Shoji SHINODA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/01/01
Vol. E88-B  No. 1  pp. 282-291
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDMchannel estimationtime-varying fadingIEEE 802.11a
 Summary | Full Text:PDF(1.3MB)

Reverse Link Performance Improvement for Wideband OFDM Using Alamouti Coded Heterogeneous Polarization Antennas
Chang-Jun AHN Yukiyoshi KAMIO Satoshi TAKAHASHI Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/11/01
Vol. E87-B  No. 11  pp. 3281-3288
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDMSTBCpolarizationXPD
 Summary | Full Text:PDF(602.8KB)

Subband Adaptive Loading for Combination of OFDM and Adaptive Antenna Array
Ming LEI Hiroshi HARADA Hiromitsu WAKANA Ping ZHANG 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/09/01
Vol. E87-B  No. 9  pp. 2798-2802
Type of Manuscript:  LETTER
Category: Wireless Communication Technologies
Keyword: 
adaptive loadingorthogonal frequency division multiplexing (OFDM)adaptive antenna array
 Summary | Full Text:PDF(931.1KB)

A New CDM Transmission Scheme with Cyclic Shifted-and- Extended Codes and a Cancellation Technique for Accumulated Cross-Correlation Values
Kazuyuki SHIMEZAWA Hiroshi HARADA Hiroshi SHIRAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2004/08/01
Vol. E87-B  No. 8  pp. 2212-2221
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
cross-correlation cancellationcyclic shifted-and-extended codescode division multiplexingmobile radio communication
 Summary | Full Text:PDF(1.3MB)

Performance Improvement of Decision-Directed OFDM Channel Estimation in a Fast Fading Environment
Ryuhei FUNADA Hiroshi HARADA Shoji SHINODA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/08/01
Vol. E87-A  No. 8  pp. 1994-2001
Type of Manuscript:  Special Section PAPER (Special Section on Digital Signal Processing)
Category: Signal Processing for Communications
Keyword: 
COFDMdecision-directed channel estimationfast fadingIEEE 802.11a
 Summary | Full Text:PDF(1.3MB)

Feasibility Study on Over-the-Air Software Download for Software-Radio-Based Intelligent Transport Systems
Hiroshi HARADA Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/12/01
Vol. E86-B  No. 12  pp. 3425-3432
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software radioITSover-the-air downloadFPGAmultimode terminal
 Summary | Full Text:PDF(1.4MB)

Adaptability Check during Software Installation in Software Defined Radio
Yasuo SUZUKI Hiroshi HARADA Kazuhiro UEHARA Teruya FUJII Yukio YOKOYAMA Koji ODA Ryoichi HIDAKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/12/01
Vol. E86-B  No. 12  pp. 3401-3407
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radio (SDR)tallytechnical regulation conformity certification testtamperingimpersonationelectronic signature
 Summary | Full Text:PDF(1.2MB)

Technical Regulation Conformity Evaluation System for Software Defined Radio
Yasuo SUZUKI Koji ODA Ryoichi HIDAKA Hiroshi HARADA Tatsuaki HAMAI Tokihiko YOKOI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/12/01
Vol. E86-B  No. 12  pp. 3392-3400
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
regulationradio lawsecurity systemsoftware defined radio (SDR)technical regulation conformity evaluation systemsecurity architecture
 Summary | Full Text:PDF(623KB)

A New Flexible Symbol-Timing Synchronization Method for Multi-Mode Software Radio Technology
Hiroshi HARADA Hiroki NAKAMURA Tetsushi IKEGAMI Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/12/01
Vol. E86-B  No. 12  pp. 3521-3529
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software radioflexible signal processingsamplingstate patternsymbol timing
 Summary | Full Text:PDF(1.6MB)

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)

An Empirical Study of a Coplanar Bandpass Filter with Attenuation Poles Using Short-Ended Half-Wavelength Resonators
Kouji WADA Yoshiyuki AIHARA Osamu HASHIMOTO Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2003/02/01
Vol. E86-A  No. 2  pp. 273-279
Type of Manuscript:  Special Section PAPER (Special Section on Analog Circuit Techniques and Related Topics)
Category: 
Keyword: 
short-ended half-wavelength resonatortap-couplingattenuation polebandpass filtercoplanar waveguide (CPW)
 Summary | Full Text:PDF(1.1MB)

A Proposal of Overfill CDM Transmission Scheme for Future Road-Vehicle Communication Systems
Kazuyuki SHIMEZAWA Hiroshi HARADA Hiroshi SHIRAI Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/01/01
Vol. E86-B  No. 1  pp. 68-78
Type of Manuscript:  Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
Category: 
Keyword: 
code division multiplexingDSRC systemITSoverfill CDM transmission scheme
 Summary | Full Text:PDF(732.8KB)

A New Small-Size Multi-Mode and Multi-Task Software Radio Prototype for Future Intelligent Transport Systems
Hiroshi HARADA Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2703-2715
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software radioDSPmultimode terminalITS
 Summary | Full Text:PDF(4.2MB)

Adaptive Modulated OFDM Radio Transmission Scheme Using a New Channel Estimation Method for Future Broadband Mobile Communication Systems
Hiroshi HARADA Takako YAMAMURA Yukiyoshi KAMIO Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/12/01
Vol. E85-B  No. 12  pp. 2785-2796
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
OFDMadaptive modulationC/N0FECdelay spread
 Summary | Full Text:PDF(1MB)

A New Estimation Method of Propagation Characteristics Using Pilot-Data-Inserted OFDM Signals for High-Mobility OFDM Transmission Scheme
Hiroshi HARADA Takako YAMAMURA Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/05/01
Vol. E85-B  No. 5  pp. 882-894
Type of Manuscript:  Special Section PAPER (Wireless Communications Issue)
Category: 
Keyword: 
OFDMpilot signalchannel estimationISI cancellation
 Summary | Full Text:PDF(1.1MB)

Technique for Improving Out-of-Band Characteristics of Planar Microwave Filters Using Tapped Resonators
Kouji WADA Kouichi NAKAGAWA Osamu HASHIMOTO Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2002/02/01
Vol. E85-C  No. 2  pp. 391-399
Type of Manuscript:  PAPER
Category: Microwaves, Millimeter-Waves
Keyword: 
tapped resonatorattenuation polespurious responsesplanar microwave filter
 Summary | Full Text:PDF(794.5KB)

A Feasibility Study of the 16QAM-OFDM Transmission Scheme for Multimedia Mobile Access Communication Systems
Hiroshi HARADA Yukiyoshi KAMIO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/08/01
Vol. E84-B  No. 8  pp. 2207-2218
Type of Manuscript:  PAPER
Category: Terrestrial Radio Communications
Keyword: 
OFDM16QAMMMACpunctured codeturbo code
 Summary | Full Text:PDF(1.8MB)

An Adaptive Symbol Timing Synchronization Method for Multi-Mode & Multi-Service Software Radio Communications System
Ryo SAWAI Hiroshi HARADA Hiroshi SHIRAI Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/07/01
Vol. E84-B  No. 7  pp. 1885-1896
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
software radiosymbol timingsynchronizationITS
 Summary | Full Text:PDF(1.1MB)

Inter-Vehicle Communication Network with an Autonomous Relay Access Scheme
Fumihide KOJIMA Hiroshi HARADA Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2001/03/01
Vol. E84-B  No. 3  pp. 566-575
Type of Manuscript:  Special Section PAPER (Special Issue on Innovative Mobile Communication Technologies at the Dawn of the 21st Century)
Category: 
Keyword: 
ITSinter-vehicle communicationmobile networkrelay access
 Summary | Full Text:PDF(832.8KB)

Performance Analysis of a New Multi-Code High-Speed Mobile Radio Transmission Scheme Using Cyclic Modified M-Sequence
Hiroshi HARADA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/09/25
Vol. E83-B  No. 9  pp. 2056-2067
Type of Manuscript:  PAPER
Category: Wireless Communication Technology
Keyword: 
multicodeCDMAsynchronizationRake receivermultimedia wireless broadband communication
 Summary | Full Text:PDF(1.6MB)

Software Receiver Technology and Its Applications
Tokihiko YOKOI Yoshimitsu IKI Jun HORIKOSHI Katsuji MIWA Yoshio KARASAWA Akira FUKUDA Jun-ichi TAKADA Yuichi KURODA Takayasu SHIOKAWA Yukitsuna FURUYA Shigenari SUZUKI Yasuhiro SENBA Yoshihide YAMADA Hiroshi HARADA Yasuo SUZUKI Kiyomichi ARAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/06/25
Vol. E83-B  No. 6  pp. 1200-1209
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio and Its Technologies)
Category: 
Keyword: 
software receiversoftware radio
 Summary | Full Text:PDF(2.1MB)

Multimode Software Radio System by Parameter Controlled and Telecommunication Component Block Embedded Digital Signal Processing Hardware
Hiroshi HARADA Yukiyoshi KAMIO Masayuki FUJISE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2000/06/25
Vol. E83-B  No. 6  pp. 1217-1228
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio and Its Technologies)
Category: 
Keyword: 
software radioDSPmultimode terminalITS
 Summary | Full Text:PDF(2.2MB)

The Feasibility Study of the Dynamic Zone Configuration Technique with a Developed Circular Array Antenna
Ami KANAZAWA Hiroshi HARADA Tsukasa IWAMA Yoshihiro HASE 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 1999/07/25
Vol. E82-A  No. 7  pp. 1210-1222
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
dynamic zone configurationdynamic channel assignmentarray antennaeffective utilization of the radio spectrum
 Summary | Full Text:PDF(1.9MB)

TDM Intercell Connection Fiber-Optic Bus Link for Personal Radio Communication Systems
Hiroshi HARADA Satoshi KAJIYA Katsutoshi TSUKAMOTO Shozo KOMAKI Norihiko MORINAGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1995/09/25
Vol. E78-B  No. 9  pp. 1287-1294
Type of Manuscript:  PAPER
Category: Optical Communication
Keyword: 
TDMfiber-opticbus linkbandpass samplingoptical beat interference
 Summary | Full Text:PDF(627.2KB)

A Study on Power Assignment of Hierarchical Modulation Schemes for Digital Broadcasting
Masakazu MORIMOTO Hiroshi HARADA Minoru OKADA Shozo KOMAKI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1994/12/25
Vol. E77-B  No. 12  pp. 1495-1500
Type of Manuscript:  Special Section PAPER (Special Issue on Digital Broadcasting Technology)
Category: 
Keyword: 
digital broadcastingHDTVhierarchical modulationgraceful degradation
 Summary | Full Text:PDF(520.4KB)

Performance Analysis of Fiber-Optic Millimeter-Wave Band Radio Subscriber Loop
Hiroshi HARADA Hee-Jin LEE Shozo KOMAKI Norihiko MORINAGA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1993/09/25
Vol. E76-B  No. 9  pp. 1128-1135
Type of Manuscript:  Special Section PAPER (Special Issue on Fiber-optic Microcelluler Radio Communication System and Their Technologies)
Category: System and Network Matters
Keyword: 
optimum modulationavailable capacityrainfall attenuationAGCmillimeter-wave band radio subscriber loop
 Summary | Full Text:PDF(658.7KB)