Tomoya TANDAI


Energy-Efficient Standby Mode Algorithms in Short-Range One-to-One Millimeter-Wave Communications
Ryoko MATSUO Tomoya TANDAI Tomoko ADACHI Hideo KASAMI Iwao SASASE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/11/01
Vol. E97-B  No. 11  pp. 2469-2479
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
60GHz millimeter-wave (mmWave)energy-efficient standby mode
 Summary | Full Text:PDF(2.3MB)

Multipacket-per-Slot Reservation-Based Random Access Protocol with MD and ARQ
Tomoya TANDAI Hiroshi SUZUKI Kazuhiko FUKAWA Satoshi SUYAMA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2014/05/01
Vol. E97-B  No. 5  pp. 1059-1071
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
reservation-based access protocolrandom accessmultiuser detectionautomatic repeat request
 Summary | Full Text:PDF(2.3MB)

Throughput Enhancement with ACK/NACK Mechanism in Short-Range Millimeter-Wave Communication Systems
Ryoko MATSUO Tomoya TANDAI Takeshi TOMIZAWA Hideo KASAMI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2013/08/01
Vol. E96-B  No. 8  pp. 2162-2172
Type of Manuscript:  PAPER
Category: Terrestrial Wireless Communication/Broadcasting Technologies
Keyword: 
60 GHz millimeter-wave (mmWave)ACK/NACK
 Summary | Full Text:PDF(2.4MB)

A Sidelobe Suppression Technique by Regenerating Null Signals in OFDM-Based Cognitive Radios
Tomoya TANDAI Takahiro KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3653-3664
Type of Manuscript:  Special Section PAPER (Special Section on Dynamic Spectrum Access)
Category: Spectrum Sensing
Keyword: 
cognitive radioOFDMsidelobe suppressioninterferenceFFTnull subcarrier
 Summary | Full Text:PDF(1.1MB)

Performance Enhancement of IEEE 802.11 WLAN with a Cognitive Radio Technique
Tomoya TANDAI Masahiro TAKAGI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/08/01
Vol. E92-B  No. 8  pp. 2649-2666
Type of Manuscript:  PAPER
Category: Wireless Communication Technologies
Keyword: 
cognitive radioIEEE 802.11 WLANinter frame spacetransmission power controlIEEE 802.11h
 Summary | Full Text:PDF(2.5MB)

A Study on Cognitive Radio Coexisting with Cellular Systems
Tomoya TANDAI Tomoya HORIGUCHI Noritaka DEGUCHI Takeshi TOMIZAWA Tazuko TOMIOKA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 38-52
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Spectrum Sharing Technology)
Category: Cognitive Network
Keyword: 
cognitive radiocoexistencecellular systemsuplink channeluplink slotcarrier sense
 Summary | Full Text:PDF(1.9MB)

Soft-Prioritization Based System Selection Strategy for Software Defined Radio
Tomoya TANDAI Toshihisa NABETANI Kiyoshi TOSHIMITSU Hiroshi TSURUMI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2005/11/01
Vol. E88-B  No. 11  pp. 4176-4185
Type of Manuscript:  Special Section PAPER (Special Section on Software Defined Radio Technology and Its Applications)
Category: 
Keyword: 
software defined radiointer-system handoververtical handoverprioritization
 Summary | Full Text:PDF(1019.8KB)