| Presentation | 2021-10-21 [Poster Presentation] A Study on Bayesian Receiver Design via Bilinear Inference for Scalable Cell-Free Massive MIMO Takumi Takahashi, Hiroki Iimori, Kengo Ando, Koji Ishibashi, Shinsuke Ibi, Giuseppe Abreu, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | One of the main challenges in realizing uplink scalable cell-free massive multi-input multi-output (CF-mMIMO) is capacity constraint on fronthaul links connecting spatially distributed access points (APs) and a central processing unit (CPU). In this paper, we investigate a robust receiver design considering the effect of information compression with the use of low-resolution analog-to-digital converters (ADCs) equipped on every AP, while assuming the power-saving and low-cost APs. The proposed scheme allows us to jointly estimate channel and data signals via bilinear Gaussian belief propagation (BiGaBP) on the basis of double-precision signals received at the CPU and quantized signals sent from the APs via the fronthaul links. Finally, simulation results show the efficacy of our proposed method in terms of the bit error rate (BER) performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | uplink cell-free massive MIMO / belief propagation / bilinear inference / low-resolution ADCs |
| Paper # | RCS2021-129 |
| Date of Issue | 2021-10-14 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2021/10/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Communication Schemes, Wireless Communication Systems, Wireless Standards, Future Wireless Systems, etc. |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) |
| Secretary | Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] A Study on Bayesian Receiver Design via Bilinear Inference for Scalable Cell-Free Massive MIMO |
| Sub Title (in English) | |
| Keyword(1) | uplink cell-free massive MIMO |
| Keyword(2) | belief propagation |
| Keyword(3) | bilinear inference |
| Keyword(4) | low-resolution ADCs |
| 1st Author's Name | Takumi Takahashi |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Hiroki Iimori |
| 2nd Author's Affiliation | Jacobs University Bremen(JUB) |
| 3rd Author's Name | Kengo Ando |
| 3rd Author's Affiliation | The University of Electro-commnucations(UEC) |
| 4th Author's Name | Koji Ishibashi |
| 4th Author's Affiliation | The University of Electro-commnucations(UEC) |
| 5th Author's Name | Shinsuke Ibi |
| 5th Author's Affiliation | Doshisha University(Doshisha Univ) |
| 6th Author's Name | Giuseppe Abreu |
| 6th Author's Affiliation | Jacobs University Bremen(JUB) |
| Date | 2021-10-21 |
| Paper # | RCS2021-129 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-210 |
| Page | pp.pp.57-62(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-10-14 (RCS) |