Masashi IWABUCHI

Outdoor Experiments on Long-Range and Mobile Communications Using 39-GHz Band for 5G and Beyond
Masashi IWABUCHI Anass BENJEBBOUR Yoshihisa KISHIYAMA Guangmei REN Chen TANG Tingjian TIAN Liang GU Yang CUI Terufumi TAKADA 
Publication:   
Publication Date: 2019/08/01
Vol. E102-B  No. 8  pp. 1437-1446
Type of Manuscript:  Special Section PAPER (Special Section on Technology Trials and Proof-of-Concept Activities for 5G and Beyond)
Category: 
Keyword: 
5G, beyond 5G, long-range communication mobility, lens antenna, beam tracking, millimeter wave, 
 Summary | Full Text:PDF
5G Experimental Trials for Ultra-Reliable and Low Latency Communications Using New Frame Structure
Masashi IWABUCHI Anass BENJEBBOUR Yoshihisa KISHIYAMA Guangmei REN Chen TANG Tingjian TIAN Liang GU Yang CUI Terufumi TAKADA 
Publication:   
Publication Date: 2019/02/01
Vol. E102-B  No. 2  pp. 381-390
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
5G, URLLC, frame structure, ACK/NACK-less retransmission, field trial, 
 Summary | Full Text:PDF
Optimal Design Method of MIMO Antenna Directivities and Corresponding Current Distributions by Using Spherical Mode Expansion
Maki ARAI Masashi IWABUCHI Kei SAKAGUCHI Kiyomichi ARAKI 
Publication:   
Publication Date: 2017/10/01
Vol. E100-B  No. 10  pp. 1891-1903
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
MIMO, antenna directivity, antenna structure, current distribution, spherical mode expansion, capacity maximization, 
 Summary | Full Text:PDF
Frame Collision Reduction Method Employing Adaptive Transmission Control for IEEE802.11 Wireless LAN System
Akira KISHIDA Masashi IWABUCHI Toshiyuki SHINTAKU Takeshi ONIZAWA Tetsu SAKATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/09/01
Vol. E97-B  No. 9  pp. 1790-1799
Type of Manuscript:  Special Section PAPER (Special Section on Ambient Intelligence and Sensor Networks)
Category: 
Keyword: 
CSMA/CA, IEEE802.11, collision reduction, dense, IFS, 
 Summary | Full Text:PDF
A New Simple Packet Combining Scheme Employing Maximum Likelihood Detection for MIMO-OFDM Transmission in Relay Channels
Takeshi ONIZAWA Hiroki SHIBAYAMA Masashi IWABUCHI Akira KISHIDA Makoto UMEUCHI Tetsu SAKATA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/05/01
Vol. E97-B  No. 5  pp. 1094-1102
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
relay channel, decode-and-forward, packet combining, cyclic shift delay, MIMO-OFDM, MLD, 
 Summary | Full Text:PDF
User-Oriented QoS Control Method Based on CSMA/CA for IEEE802.11 Wireless LAN System
Akira KISHIDA Masashi IWABUCHI Toshiyuki SHINTAKU Tetsu SAKATA Takefumi HIRAGURI Kentaro NISHIMORI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/02/01
Vol. E96-B  No. 2  pp. 419-429
Type of Manuscript:  Special Section PAPER (Special Section on Quality of Communication Services Improving Quality of Life)
Category: 
Keyword: 
user-oriented, QoS, fixed backoff, CSMA/CA, IEEE802.11, 
 Summary | Full Text:PDF