Presentation 2021-10-07
Wireless Channel Prediction with Gaussian Process
Yitu Wang, Takayuki Nakachi, Takeru Inoue, Toru Mano, Kudo Riichi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) With accurate knowledge of future Channel State Information (CSI), it becomes possible to better manipulate the wireless resources in a proactive manner, so as to provide solid support to smart and high quality wireless transmission. However, in mobile environment, the evolving correlation patterns in CSI series challenge the existing data-driven algorithms to adaptively learn and predict its behavior. In this article, an adaptive learning algorithm is proposed based on Gaussian Process (GP), to discover and utilize the spatial correlation within a channel and across channels, and produce accurate CSI prediction. Specifically, 1). To track the evolving correlation of a channel, we tailor Spectrum Mixture (SM) kernel to not only approximate the optimal kernel adapting to the current CSI, but also capture the combined effect of path loss and User Equipment (UE) motion. 2). The correlation across channels is encoded into the GP-based learning framework through Linear Model of Co-regionalization (LMC). Finally, our proposed algorithm is evaluated by simulation to show its superiority over the conventional schemes such as stochastic based ARIMA, deep learning based LSTM, etc.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Channel State Information / Prediction Algorithm / Gaussian Process / Linear model of coreginalization
Paper # SIS2021-12
Date of Issue 2021-09-30 (SIS)

Conference Information
Committee SIS / ITE-BCT
Conference Date 2021/10/7(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English) System Implementation Technology, Short Range Wireless Systems, Smart Multimedia Systems, Broadcasting Technology, etc.
Chair Noriaki Suetake(Yamaguchi Univ.) / Kyoichi Saito(NHK)
Vice Chair Tomoaki Kimura(Kanagawa Inst. of Tech.) / Naoto Sasaoka(Tottori Univ.) / Hidekazu Murata(Kyoto Univ.) / Hajime Saito(TV Tokyo)
Secretary Tomoaki Kimura(National Inst. of Tech., Ube College) / Naoto Sasaoka(NTT) / Hidekazu Murata(NHK) / Hajime Saito(TV Asahi)
Assistant Soh Yoshida(Kansai Univ.) / Yoshiaki Makabe(Kanagawa Inst. of Tech.) / Hiroshi Tsutsui(Hokkaido Univ.) / Akihiro Tanabe(NTT) / Toshimitsu Kobayashi(NBN)

Paper Information
Registration To Technical Committee on Smart Info-Media Systems / Technical Group on Broadcasting and Communication Technologies
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Wireless Channel Prediction with Gaussian Process
Sub Title (in English)
Keyword(1) Channel State Information
Keyword(2) Prediction Algorithm
Keyword(3) Gaussian Process
Keyword(4) Linear model of coreginalization
1st Author's Name Yitu Wang
1st Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
2nd Author's Name Takayuki Nakachi
2nd Author's Affiliation University of the Ryukyus(former NTT)
3rd Author's Name Takeru Inoue
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
4th Author's Name Toru Mano
4th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
5th Author's Name Kudo Riichi
5th Author's Affiliation Nippon Telegraph and Telephone Corporation(NTT)
Date 2021-10-07
Paper # SIS2021-12
Volume (vol) vol.121
Number (no) SIS-190
Page pp.pp.11-16(SIS),
#Pages 6
Date of Issue 2021-09-30 (SIS)