Presentation 2021-09-10
Optimal terminal selection based on Doppler frequency estimation for terminal cooperative communications
Takuma Fujii, Satoshi Denno, Hou Yafei, Hidekazu Murata,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Terminal cooperative communications is communication in which multiple terminals receive signals transmitted from a base station and transmit them to the receiving terminals at the same time. In terminal cooperative communications, the optimum relay terminal is selected by considering the status of multiple relay terminals. We propose the optimum terminal selection method for selective communication. In the proposed method, all the weights of the base station, the relay terminal, and the receiving terminal are considered and multiplied. First, the Doppler frequency of the relay terminal is estimated. The SNR of each relay terminal is obtained using the estimated Doppler frequency, and the optimum relay terminal is selected by comparison. This makes it possible to select the most suitable terminal assuming an environment in which the relay terminal is moving at high speed. When the characteristics of the proposed method were evaluated by computer simulation, it was possible to obtain communication characteristics that did not deteriorate even when the relay terminals moved at high speed in terminal cooperative communications using three relay terminals.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Terminal cooperative communication / Doppler frequency estimation / Terminal selection / Relay terminal
Paper # CQ2021-54
Date of Issue 2021-09-02 (CQ)

Conference Information
Committee CQ
Conference Date 2021/9/9(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) Wireless Communications Quality, 6G, IoT, Resource Management, Wireless Transmission, Cross layer Technologies, etc.
Chair Jun Okamoto(NTT)
Vice Chair Takefumi Hiraguri(Nippon Inst. of Tech.) / Gou Hasegawa(Tohoku Univ.)
Secretary Takefumi Hiraguri(NTT) / Gou Hasegawa(Ritsumeikan Univ.)
Assistant Yoshiaki Nishikawa(NEC) / Ryoichi Kataoka(KDDI Research) / Kimiko Kawashima(NTT)

Paper Information
Registration To Technical Committee on Communication Quality
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Optimal terminal selection based on Doppler frequency estimation for terminal cooperative communications
Sub Title (in English)
Keyword(1) Terminal cooperative communication
Keyword(2) Doppler frequency estimation
Keyword(3) Terminal selection
Keyword(4) Relay terminal
1st Author's Name Takuma Fujii
1st Author's Affiliation Okayama University(Okayama Univ.)
2nd Author's Name Satoshi Denno
2nd Author's Affiliation Okayama University(Okayama Univ.)
3rd Author's Name Hou Yafei
3rd Author's Affiliation Okayama University(Okayama Univ.)
4th Author's Name Hidekazu Murata
4th Author's Affiliation Kyoto University(Kyoto Univ.)
Date 2021-09-10
Paper # CQ2021-54
Volume (vol) vol.121
Number (no) CQ-173
Page pp.pp.82-87(CQ),
#Pages 6
Date of Issue 2021-09-02 (CQ)