| Presentation | 2023-07-13 A Study on Bayesian Receiver Design for Uplink MU-MIMO Systems with Carrier Frequency Offsets Kenta Ito, Takumi Takahashi, Koji Igarashi, Koji Ishibashi, Shinsuke Ibi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a novel Bayesian receiver design to realize high-accuracy data detection under observations subject to different frequency offsets (CFOs) among users in multi-user multi-input multi-output (MU-MIMO) systems. Phase shift led by CFO makes it hard to detect data symbols with high accuracy, which becomes one of the major obstacles to achieving the ideal performance of uplink MU-MIMO. To resolve this issue, this paper investigates belief propagation (BP)-based joint CFO, channel, and data estimation method. In the proposed method, the prior distribution of phase shift is represented by employing highly flexible and tractable Gaussian-mixture (GM) distribution, and the expectation-maximization (EM) algorithm for updating distribution parameters included in GM distribution is extending to a suitable form for CFO estimation, realizing robust joint estimation. The efficacy of the proposed method is confirmed by computer simulations in terms of the normalized mean square error (NMSE) performance and the bit error rate (BER) performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Bilinear inference / Gaussian belief propagation / Carrier Frequency Offset |
| Paper # | RCS2023-93 |
| Date of Issue | 2023-07-05 (RCS) |
| Conference Information | |
| Committee | SeMI / RCS / RCC / NS / SR |
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| Conference Date | 2023/7/12(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka University Nakanoshima Center + Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Distributed Wireless Network, M2M (Machine-to-Machine)，D2D (Device-to-Device)，IoT（Internet of Things）, etc |
| Chair | Kazuya Monden(Hitachi) / Kenichi Higuchi(Tokyo Univ. of Science) / Shunichi Azuma(Kyoto Univ.) / Tetsuya Oishi(NTT) / Osamu Takyu(Shinshu Univ.) |
| Vice Chair | Yasunori Owada(NICT) / Shunsuke Saruwatari(Osaka Univ.) / Fumihide Kojima(NICT) / Osamu Muta(Kyushu Univ.) / Naoto Ishii(NEC) / Shunichi Azuma(Hokkaido Univ.) / Koji Ishii(Kagawa Univ.) / Takumi Miyoshi(Shibaura Inst. of Tech.) / Kentaro Ishidu(NICT) / Kazuto Yano(ATR) / Shusuke Narieda(Mie Univ.) |
| Secretary | Yasunori Owada(NTT DOCOMO) / Shunsuke Saruwatari(Tokyo Univ. of Agri. and Tech.) / Fumihide Kojima(Univ. of Tokyo) / Osamu Muta(Univ. of Electro-Comm) / Naoto Ishii(Sharp) / Shunichi Azuma(Mitsubishi Electric) / Koji Ishii(CRIEPI) / Takumi Miyoshi(Ritsumeikan Univ.) / Kentaro Ishidu(NTT) / Kazuto Yano(Kogakuin Univ.) / Shusuke Narieda(Tokai Univ.) |
| Assistant | Yuki Matsuda(NAIST) / Taku Suzuki(Hitachi) / Takeshi Hirai(Osaka Univ.) / Masashi Iwabuchi(NTT) / Issei Kanno(KDDI Research) / Yuyuan Chang(Tokyo Inst. of Tech) / Kazuki Maruta(Tokyo Univ. of Science) / Kiichi Tateishi(NTT Docomo) / SHAN LIN(NICT) / Ryosuke Adachi(Yamaguchi Univ.) / Hiroshi Yamamoto(NTT) / Taichi Ohtsuji(NEC) / WANG Xiaoyan(Ibaraki Univ.) / Akemi Tanaka(MathWorks) / Katsuya Suto(Univ. of Electro-Comm) |
| Paper Information | |
| Registration To | Technical Committee on Sensor Network and Mobile Intelligence / Technical Committee on Radio Communication Systems / Technical Committee on Reliable Communication and Control / Technical Committee on Network Systems / Technical Committee on Smart Radio |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Bayesian Receiver Design for Uplink MU-MIMO Systems with Carrier Frequency Offsets |
| Sub Title (in English) | |
| Keyword(1) | Bilinear inference |
| Keyword(2) | Gaussian belief propagation |
| Keyword(3) | Carrier Frequency Offset |
| 1st Author's Name | Kenta Ito |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Takumi Takahashi |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| 3rd Author's Name | Koji Igarashi |
| 3rd Author's Affiliation | Osaka University(Osaka Univ.) |
| 4th Author's Name | Koji Ishibashi |
| 4th Author's Affiliation | The University of Electro-Communications(UEC) |
| 5th Author's Name | Shinsuke Ibi |
| 5th Author's Affiliation | Doshisha University(Doshisha Univ.) |
| Date | 2023-07-13 |
| Paper # | RCS2023-93 |
| Volume (vol) | vol.123 |
| Number (no) | RCS-108 |
| Page | pp.pp.70-75(RCS), |
| #Pages | 6 |
| Date of Issue | 2023-07-05 (RCS) |