Atsushi HARADA


Indoor and Field Experiments on 5G Radio Access for 28-GHz Band Using Distributed MIMO and Beamforming
Daisuke KURITA Kiichi TATEISHI Daisuke KITAYAMA Atsushi HARADA Yoshihisa KISHIYAMA Hideshi MURAI Shoji ITOH Arne SIMONSSON Peter ÖKVIST 
Publication:   
Publication Date: 2019/08/01
Vol. E102-B  No. 8  pp. 1427-1436
Type of Manuscript:  Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G and Beyond)
Category: 
Keyword: 
5Ghigher frequency bandsdistributed MIMOmassive-MIMObeamformingfield experiments
 Summary | Full Text:PDF

High Speed Mobility Experiments on Distributed MIMO Beamforming for 5G Radio Access in 28-GHz Band
Daisuke KITAYAMA Kiichi TATEISHI Daisuke KURITA Atsushi HARADA Minoru INOMATA Tetsuro IMAI Yoshihisa KISHIYAMA Hideshi MURAI Shoji ITOH Arne SIMONSSON Peter ÖKVIST 
Publication:   
Publication Date: 2019/08/01
Vol. E102-B  No. 8  pp. 1418-1426
Type of Manuscript:  Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G and Beyond)
Category: 
Keyword: 
5Ghigher frequency bandsdistributed MIMOmassive-MIMObeamformingfield experimentshigh-speed mobility
 Summary | Full Text:PDF

Indoor and Outdoor Experiments of Downlink Transmission at 15-GHz Band for 5G Radio Access
Kiichi TATEISHI Daisuke KURITA Atsushi HARADA Yoshihisa KISHIYAMA Takehiro NAKAMURA Stefan PARKVALL Erik DAHLMAN Johan FURUSKOG 
Publication:   
Publication Date: 2017/08/01
Vol. E100-B  No. 8  pp. 1238-1246
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Technologies for 5G Mobile Communications System)
Category: Antennas and Propagation
Keyword: 
5Ghigh-SHF bandcarrier aggregationTDDsingle-user MIMOexperiments
 Summary | Full Text:PDF

Field Experiments on Downlink Distributed MIMO at 15-GHz Band for 5G Radio Access
Daisuke KURITA Kiichi TATEISHI Atsushi HARADA Yoshihisa KISHIYAMA Takehiro NAKAMURA Stefan PARKVALL Erik DAHLMAN Johan FURUSKOG 
Publication:   
Publication Date: 2017/08/01
Vol. E100-B  No. 8  pp. 1247-1255
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Technologies for 5G Mobile Communications System)
Category: Wireless Communication Technologies
Keyword: 
5Ghigher frequency bandsmulti-point transmissionjoint transmissionfield experiments
 Summary | Full Text:PDF

A Novel Low Computational Complexity Power Assignment Method for Non-orthogonal Multiple Access Systems
Anxin LI Atsushi HARADA Hidetoshi KAYAMA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2014/01/01
Vol. E97-A  No. 1  pp. 57-68
Type of Manuscript:  Special Section PAPER (Special Section on Wideband Systems)
Category: Resource Allocation
Keyword: 
non-orthogonal multiple accesspower assignmentlow computational complexitytree searchbeyond LTE system
 Summary | Full Text:PDF

Adaptive Radio Parameter Control Considering QoS for Forward Link OFCDM Wireless Access
Atsushi HARADA Sadayuki ABETA Mamoru SAWAHASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/01/01
Vol. E86-B  No. 1  pp. 314-324
Type of Manuscript:  Special Section PAPER (Special Issue on Multiple Access and Signal Transmission Techniques for Future Mobile Communications)
Category: 
Keyword: 
broadband packet wireless accessforward linkQoS controlHARQadaptive modulation and channel coding
 Summary | Full Text:PDF

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

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

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