Ren SAKATA


Dynamic Pilot Channel Transmission with Adaptive Receive Filter Configuration for Cognitive Radio System
Ren SAKATA Tazuko TOMIOKA Takahiro KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/04/01
Vol. E95-B  No. 4  pp. 1256-1265
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Heterogeneous Wireless Networks in Conjunction with Main Topics of CrownCom2011)
Category: 
Keyword: 
cognitive pilot signaldifferential code parallel transmissionadaptive equalizer
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Software Defined Modem for Cognitive Radio with Dynamically Reconfigurable Processor
Ren SAKATA Daisuke TAKEDA Noritaka DEGUCHI Tatsuma HIRANO Takashi YOSHIKAWA 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2012/03/01
Vol. E95-B  No. 3  pp. 810-818
Type of Manuscript:  PAPER
Category: Transmission Systems and Transmission Equipment for Communications
Keyword: 
software defined radioreconfigurable processor3GPP long term evolution
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Performance Analysis of Control Signal Transmission Technique for Cognitive Radios in Dynamic Spectrum Access Networks
Ren SAKATA Tazuko TOMIOKA Takahiro KOBAYASHI 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2009/12/01
Vol. E92-B  No. 12  pp. 3597-3605
Type of Manuscript:  Special Section PAPER (Special Section on Dynamic Spectrum Access)
Category: Spectrum Allocation
Keyword: 
cognitive radiodynamic spectrum accesscontrol signaldifferential code parallel transmission
 Summary | Full Text:PDF

Proposal of an A/D Converter Clipping Noise Suppression Technique for High-Sensitivity Carrier-Sensing of Cognitive Radio Transceiver
Tazuko TOMIOKA Ren SAKATA Tomoya HORIGUCHI Takeshi TOMIZAWA Kaoru INOUE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2008/01/01
Vol. E91-B  No. 1  pp. 119-126
Type of Manuscript:  Special Section PAPER (Special Section on Cognitive Radio and Spectrum Sharing Technology)
Category: Enabling Technology
Keyword: 
cognitive radiocarrier-sensinganalogue-to-digital converterclippinginterpolation
 Summary | Full Text:PDF