Seigo NAKAO

Inter-Cell Interference Coordination Method Based on Coordinated Inter-Cell Interference Power Control in Uplink
Kenichi HIGUCHI Yoshiko SAITO Seigo NAKAO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2015/07/01
Vol. E98-B  No. 7  pp. 1357-1362
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
cellular system, uplink, power control, inter-cell interference coordination, fractional frequency reuse, 
 Summary | Full Text:PDF(1.6MB)
Resource Reduction Method for the LTE-Advanced Uplink ACK/NACK Signal and SR
Seigo NAKAO Kenji TAKAGI Masaru FUKUOKA Daichi IMAMURA Hidekazu MURATA Koji YAMAMOTO Susumu YOSHIDA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/01/01
Vol. E94-B  No. 1  pp. 364-367
Type of Manuscript:  LETTER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
LTE-Advanced, space orthogonal resource transmit diversity, phase rotation, ACK/NACK signal, scheduling request, 
 Summary | Full Text:PDF(280.4KB)
Effects of a Phase Rotation Scheme on the DTX Detection Performance for the E-UTRA Uplink ACK/NACK Signals
Seigo NAKAO Tomohumi TAKATA Daichi IMAMURA Katsuhiko HIRAMATSU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2011/01/01
Vol. E94-B  No. 1  pp. 262-272
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
cyclic shift sequence, CDMA, inter-code interference, phase rotation, HARQ, E-UTRA, DTX detection, uplink control channel, 
 Summary | Full Text:PDF(749.7KB)
A Novel Phase Rotation Scheme on the Constellations for the E-UTRA Uplink ACK/NACK Signals
Seigo NAKAO Tomohumi TAKATA Daichi IMAMURA Katsuhiko HIRAMATSU 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/11/01
Vol. E92-B  No. 11  pp. 3459-3469
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
phase rotation, CDMA, inter-code interference, CS sequences, E-UTRA, uplink control channel, 
 Summary | Full Text:PDF(1.3MB)
A Novel Spreading Code Design for E-UTRA Uplink Control Channel and Its Performance
Seigo NAKAO Tomohumi TAKATA Masaru FUKUOKA Daichi IMAMURA Katsuhiko HIRAMATSU Kazuyuki MIYA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/07/01
Vol. E92-B  No. 7  pp. 2433-2441
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
E-UTRA, uplink control channel, CDMA, cyclic shift sequences, inter-code interference, 
 Summary | Full Text:PDF(615.5KB)
Development and Evaluation of a Smart Antenna Test Bed for Wireless LAN
Yoshiharu DOI Seigo NAKAO Yasuhiro TANAKA Takeo OHGANE Yasutaka OGAWA 
Publication:   IEICE TRANSACTIONS on Electronics
Publication Date: 2004/09/01
Vol. E87-C  No. 9  pp. 1449-1454
Type of Manuscript:  Special Section PAPER (Special Section on Wave Technologies for Wireless and Optical Communications)
Category: Antennas and Propagation for Wireless Communications
Keyword: 
smart antenna, wireless LAN, software defined radio, field test, 
 Summary | Full Text:PDF(778.1KB)
Development and Evaluation of the SDMA Test Bed for PHS in the Field
Yoshiharu DOI Jun KITAKADO Tadayoshi ITO Takeo MIYATA Seigo NAKAO Takeo OHGANE Yasutaka OGAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2003/12/01
Vol. E86-B  No. 12  pp. 3433-3440
Type of Manuscript:  Special Section PAPER (Special Issue on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
space division multiple access, adaptive array antenna, software defined radio (SDR), field test, PHS, 
 Summary | Full Text:PDF(789.9KB)