Takehiro NAKAMURA

Scattering Characteristics of the Human Body in 67-GHz Band
Ngochao TRAN Tetsuro IMAI Koshiro KITAO Yukihiko OKUMURA Takehiro NAKAMURA Hiroshi TOKUDA Takao MIYAKE Robin WANG Zhu WEN Hajime KITANO Roger NICHOLS 
Publication:   
Publication Date: 2018/06/01
Vol. E101-B  No. 6  pp. 1434-1442
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
5G, millimeter waves, NLOS scenarios, scattered waves by human bodies, radar cross section, 
 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: 
5G, higher frequency bands, multi-point transmission, joint transmission, field experiments, 
 Summary | Full Text:PDF
Investigation on Non-Orthogonal Multiple Access with Reduced Complexity Maximum Likelihood Receiver and Dynamic Resource Allocation
Yousuke SANO Kazuaki TAKEDA Satoshi NAGATA Takehiro NAKAMURA Xiaohang CHEN Anxin LI Xu ZHANG Jiang HUILING Kazuhiko FUKAWA 
Publication:   
Publication Date: 2017/08/01
Vol. E100-B  No. 8  pp. 1301-1311
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Technologies for 5G Mobile Communications System)
Category: Wireless Communication Technologies
Keyword: 
non-orthogonal multiple access, reduced complexity-maximum likelihood receiver, link to system mapping, user scheduling, 
 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: 
5G, high-SHF band, carrier aggregation, TDD, single-user MIMO, experiments, 
 Summary | Full Text:PDF
Downlink Non-Orthogonal Multiple Access (NOMA) Combined with Single User MIMO (SU-MIMO)
Anass BENJEBBOUR Anxin LI Keisuke SAITO Yoshihisa KISHIYAMA Takehiro NAKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/08/01
Vol. E98-B  No. 8  pp. 1415-1425
Type of Manuscript:  Special Section PAPER (Special Section on 5G Radio Access Networks―Part I: Radio Access Technologies and System Design)
Category: 
Keyword: 
cellular system, non-orthogonal multiple access, superposition coding, MIMO, successive interference cancellation, 
 Summary | Full Text:PDF
5G Radio Access: Requirements, Concept and Experimental Trials
Takehiro NAKAMURA Anass BENJEBBOUR Yoshihisa KISHIYAMA Satoshi SUYAMA Tetsuro IMAI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/08/01
Vol. E98-B  No. 8  pp. 1397-1406
Type of Manuscript:  INVITED PAPER (Special Section on 5G Radio Access Networks―Part I: Radio Access Technologies and System Design)
Category: 
Keyword: 
next generation mobile communications system, 5G, 4G, LTE, LTE-advanced, 
 Summary | Full Text:PDF
Demodulation Reference Signal Using Two-Dimensional Orthogonal Cover Code Mapping for Multi-Antenna/Point Transmission in LTE-Advanced Downlink
Kazuaki TAKEDA Yoshihisa KISHIYAMA Tetsushi ABE Takehiro NAKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12  pp. 3354-3361
Type of Manuscript:  Special Section PAPER (Special Section on Cooperative Communications for Cellular Networks)
Category: 
Keyword: 
LTE-Advanced, MIMO, CoMP, reference signal, orthogonal cover code, 
 Summary | Full Text:PDF
System Performance Investigation of Layer-1 and Layer-3 Relays in LTE-Advanced Downlink
Satoshi NAGATA Yuan YAN Anxin LI Xinying GAO Tetsushi ABE Takehiro NAKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/12/01
Vol. E94-B  No. 12  pp. 3296-3303
Type of Manuscript:  Special Section PAPER (Special Section on Cooperative Communications for Cellular Networks)
Category: 
Keyword: 
LTE-advanced, OFDM, relay, layer 3, scheduling, 
 Summary | Full Text:PDF
Field and Indoor Experimental Results of E-UTRA Uplink
Naoto OKUBO Yoshiaki OFUJI Sadayuki ABETA Takehiro NAKAMURA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/05/01
Vol. E92-B  No. 5  pp. 1714-1724
Type of Manuscript:  Special Section PAPER (Special Section on Radio Access Techniques for 3G Evolution)
Category: 
Keyword: 
Evolved UTRA uplink, AMC, TPC, variable RB allocation, 
 Summary | Full Text:PDF
Experiments on HSDPA Throughput Performance in W-CDMA Systems
Hiroyuki ISHII Tomoki SAO Shinya TANAKA Shinsuke OGAWA Yousuke IIZUKA Takeshi NAKAMORI Takehiro NAKAMURA 
Publication:   IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2006/07/01
Vol. E89-A  No. 7  pp. 1903-1912
Type of Manuscript:  Special Section PAPER (Special Section on Multi-dimensional Mobile Information Networks)
Category: 
Keyword: 
HSDPA, advanced receiver, BS scheduling, TCP throughput, 
 Summary | Full Text:PDF