| Presentation | 2021-08-27 Antenna Configuration and Robust Receiver Design for Scalable Cell-Free Massive MIMO with Capacity Limited Fronthaul Kengo Ando, Hiroki Iimori, Giuseppe Abreu, Takumi Takahashi, Koji Ishibashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we investigate an uplink signal detection problem in scalable cell-free massive multiple input multiple output (CF-mMIMO) systems subject to capacity-limited fronthaul links. We propose highly-reliable two receiver designs, which can mitigate the effects of capacity-limited fronthaul links by making use of the heteroscedastic covariance matrix of the equivalent noise. The first receiver based on an expectation propagation framework requires a higher computational burden but yields the best performance. The second receiver based on a generalized least square (GLS) variation of the discreteness-aware maximum likelihood (ML) estimation achieves significant reduction in the computational complexity with only slight performance degradation compared to the first one. Simulation results demonstrate the superior performance of our proposed receiver designs in comparison to the conventional receiver designs in terms of bit error rate. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Uplink Cell-Free Massive MIMO / Receiver Design / Discreteness Aware / Expectation Propagation |
| Paper # | RCS2021-114 |
| Date of Issue | 2021-08-19 (RCS) |
| Conference Information | |
| Committee | RCS / SAT |
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| Conference Date | 2021/8/26(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Eiji Okamoto(Nagoya Inst. of Tech.) / Hiroyasu Ishikawa(Nihon Univ.) |
| Vice Chair | Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) / Tetsushi Ikegami(Meiji Univ.) / Takana Kaho(Shonan Inst. of Tech.) |
| Secretary | Toshihiko Nishimura(NEC) / Tomoya Tandai(Panasonic) / Fumihide Kojima(KDDI Research) / Tetsushi Ikegami(NICT) / Takana Kaho |
| Assistant | Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) / Manabu Sakai(Mitsubishi Electric) / Masashi Iwabuchi(NTT) / Tatsuki Okuyama(NTT DOCOMO) / Daisuke Goto(NTT) / Yuuki Koizumi(NHK) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Satellite Telecommunications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Antenna Configuration and Robust Receiver Design for Scalable Cell-Free Massive MIMO with Capacity Limited Fronthaul |
| Sub Title (in English) | |
| Keyword(1) | Uplink Cell-Free Massive MIMO |
| Keyword(2) | Receiver Design |
| Keyword(3) | Discreteness Aware |
| Keyword(4) | Expectation Propagation |
| 1st Author's Name | Kengo Ando |
| 1st Author's Affiliation | The University of Electro-commnucations(UEC) |
| 2nd Author's Name | Hiroki Iimori |
| 2nd Author's Affiliation | Jacobs University Bremen(JUB) |
| 3rd Author's Name | Giuseppe Abreu |
| 3rd Author's Affiliation | Jacobs University Bremen(JUB) |
| 4th Author's Name | Takumi Takahashi |
| 4th Author's Affiliation | Osaka University(Osaka Univ) |
| 5th Author's Name | Koji Ishibashi |
| 5th Author's Affiliation | The University of Electro-communications(UEC) |
| Date | 2021-08-27 |
| Paper # | RCS2021-114 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-153 |
| Page | pp.pp.79-84(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-08-19 (RCS) |