Teruo KAWAMURA


Throughput Analyses Based on Practical Upper Bound for Adaptive Modulation and Coding in OFDM MIMO Multiplexing
Bing HAN Teruo KAWAMURA Yuichi KAKISHIMA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2016/01/01
Vol. E99-A  No. 1  pp. 185-195
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: 
Keyword: 
OFDMMIMO multiplexingAMCmodulation and coding schemeMLDround trip delay time
 Summary | Full Text:PDF(3MB)

Performance of Open-Loop Transmit Diversity with Intra-Subframe Frequency Hopping and Iterative Decision-Feedback Channel Estimation for DFT-Precoded OFDMA
Lianjun DENG Teruo KAWAMURA Hidekazu TAOKA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/08/01
Vol. E98-B  No. 8  pp. 1492-1505
Type of Manuscript:  Special Section PAPER (Special Section on 5G Radio Access Networks―Part I: Radio Access Technologies and System Design)
Category: 
Keyword: 
transmit diversityspace-time block codesingle-carrier FDMAchannel estimationturbo frequency domain equalizer
 Summary | Full Text:PDF(3.4MB)

Comparative Study of Open-Loop Transmit Diversity Schemes with Four Antennas in DFT-Precoded OFDMA Using Turbo FDE and Iterative Channel Estimation
Lianjun DENG Teruo KAWAMURA Hidekazu TAOKA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/06/01
Vol. E98-B  No. 6  pp. 1065-1077
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
transmit diversityspace-time block codesingle-carrier FDMAchannel estimationturbo frequency domain equalizer
 Summary | Full Text:PDF(2.7MB)

Field Experimental Evaluation of Null Control Performance of MU-MIMO Considering Smart Vertical MIMO in LTE-Advanced Downlink under LOS Dominant Conditions
Yuki INOUE Daiki TAKEDA Keisuke SAITO Teruo KAWAMURA Hidehiro ANDOH 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/10/01
Vol. E97-B  No. 10  pp. 2136-2144
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Measurement and Design Techniques on Antennas, Propagation and Wireless Systems)
Category: 
Keyword: 
LTE-Advancedmulti-user MIMOSmart Vertical MIMOfield experimentspatial correlationnull control
 Summary | Full Text:PDF(4.1MB)

Investigation on Frequency Diversity Effects of Various Transmission Schemes Using Frequency Domain Equalizer for DFT-Precoded OFDMA
Lianjun DENG Teruo KAWAMURA Hidekazu TAOKA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 30-39
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: Foundations
Keyword: 
single-carrier FDMAfrequency diversityfrequency domain equalizerfrequency mean square covarianceDFT-precoded OFDMA
 Summary | Full Text:PDF(2.6MB)

Indoor Experiments on 4-by-2 Multi-User MIMO and Carrier Aggregation Achieving Real-Time 1-Gbps Data Transmission in LTE-Advanced Downlink
Yuichi KAKISHIMA Teruo KAWAMURA Yoshihisa KISHIYAMA Hidehiro ANDOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 109-116
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: Implementation
Keyword: 
LTE-AdvancedOFDMAmulti-user MIMOantenna arrangementindoor experiment
 Summary | Full Text:PDF(2.2MB)

Performance of Star 16QAM Schemes Considering Cubic Metric for Uplink DFT-Precoded OFDMA
Teruo KAWAMURA Yoshihisa KISHIYAMA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 18-29
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: Foundations
Keyword: 
modulation scheme16QAMDFT-precoded OFDMAsingle-carrier FDMAcubic metric
 Summary | Full Text:PDF(2.5MB)

Experiments on Asymmetric Carrier Aggregation Associated with Control Signaling Reception Quality in LTE-Advanced
Keisuke SAITO Yuichi KAKISHIMA Teruo KAWAMURA Yoshihisa KISHIYAMA Hidekazu TAOKA Hidehiro ANDOH 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2013/11/01
Vol. E96-A  No. 11  pp. 2106-2113
Type of Manuscript:  Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category: Communication Theory and Signals
Keyword: 
LTE-Advancedasymmetric carrier aggregationcontrol signalingexperiment
 Summary | Full Text:PDF(2.3MB)

Throughput/ACLR Performance of CF-Based Adaptive PAPR Reduction Method for Eigenmode MIMO-OFDM Signals with AMC
Shoki INOUE Teruo KAWAMURA Kenichi HIGUCHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/09/01
Vol. E96-B  No. 9  pp. 2293-2300
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
OFDMPAPRMIMOprecodingclipping and filteringadaptive modulation and channel codingACLR
 Summary | Full Text:PDF(1.6MB)

Throughput Comparisons of 32/64APSK Schemes Based on Mutual Information Considering Cubic Metric
Reo KOBAYASHI Teruo KAWAMURA Nobuhiko MIKI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/12/01
Vol. E95-B  No. 12  pp. 3719-3727
Type of Manuscript:  Special Section PAPER (Special Section on Coding and Coding Theory-Based Signal Processing for Wireless Communications)
Category: 
Keyword: 
APSKthroughputmutual informationcubic metric
 Summary | Full Text:PDF(2.9MB)

Effect of Intra-Subframe Frequency Hopping on Codebook Based Closed-Loop Transmit Diversity for DFT-Precoded OFDMA
Lianjun DENG Teruo KAWAMURA Hidekazu TAOKA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/12/01
Vol. E95-B  No. 12  pp. 3699-3707
Type of Manuscript:  Special Section PAPER (Special Section on Coding and Coding Theory-Based Signal Processing for Wireless Communications)
Category: 
Keyword: 
transmit diversityprecodingfrequency hoppingfrequency-selective fading
 Summary | Full Text:PDF(2.4MB)

Comparative Study of Open-Loop Transmit Diversity Schemes for DFT-Precoded OFDMA in Frequency-Selective Fading Channels
Lianjun DENG Teruo KAWAMURA Hidekazu TAOKA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/12/01
Vol. E95-B  No. 12  pp. 3708-3718
Type of Manuscript:  Special Section PAPER (Special Section on Coding and Coding Theory-Based Signal Processing for Wireless Communications)
Category: 
Keyword: 
transmit diversityspace-time block codespace-frequency block codesingle-carrier FDMA
 Summary | Full Text:PDF(3.1MB)

Performance Evaluation of Joint MLD with Channel Coding Information for Control Signals Using Cyclic Shift CDMA and Block Spread CDMA
Teruo KAWAMURA Ryota TAKAHASHI Hideyuki NUMATA Nobuhiko MIKI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/12/01
Vol. E95-B  No. 12  pp. 3688-3698
Type of Manuscript:  Special Section PAPER (Special Section on Coding and Coding Theory-Based Signal Processing for Wireless Communications)
Category: 
Keyword: 
CDMAcyclic shiftblock spreadMLDLTE
 Summary | Full Text:PDF(3.6MB)

Single-Carrier Based Multiplexing of Layer 1/Layer 2 Control Signals in Evolved UTRA Uplink Using DFT-Spread OFDM
Teruo KAWAMURA Yoshihisa KISHIYAMA Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1695-1704
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
control signalmultiplexingsingle-carrier FDMAuplinkmobile communications
 Summary | Full Text:PDF(1.7MB)

Orthogonal Pilot Channel Using Combination of FDMA and CDMA in Single-Carrier FDMA-Based Evolved UTRA Uplink
Teruo KAWAMURA Yoshihisa KISHIYAMA Kenichi HIGUCHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/07/01
Vol. E91-B  No. 7  pp. 2299-2309
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
single-carrier FDMAevolved UTRAuplinkorthogonal pilot
 Summary | Full Text:PDF(1.7MB)

Variable Spreading and Chip Repetition Factors (VSCRF)-CDMA in Reverse Link for Broadband Packet Wireless Access
Yoshikazu GOTO Teruo KAWAMURA Hiroyuki ATARASHI Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/02/01
Vol. E88-B  No. 2  pp. 509-519
Type of Manuscript:  Special Section PAPER (Special Section on Multi-carrier Signal Processing Techniques for Next Generation Mobile Communications--Part2)
Category: 
Keyword: 
broadband packet wireless accessreverse linkVSCRF-CDMAchip repetitionspreading
 Summary | Full Text:PDF(1.3MB)