| Presentation | 2021-08-27 Resource Allocation and Beamforming Design Considering User Fairness for Cell-Free Massive MIMO System with Dynamic TDD Shuto Fukue, Hiroki Iimori, Giuseppe Abreu, 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 consider a cell-free massive multiple-input multiple-output (MIMO) system, in which uplink and downlink multiple-antenna users located within the coverage area are jointly served by the system. In this context, we propose a joint design of access point (AP) allocation and beamforming, which aims to maximize the minimum achievable throughput among the users while satisfying the transmit power constraint. In order to solve this problem efficiently, we reformulate the latter as a convex optimization problem by utilizing fractional programming and entropy regularization techniques. Also, we propose a novel initialization method for the AP allocation problem based on the received signal strength so as to improve the convergence property. It is shown via simulation that the proposed algorithm reveals a reasonable compromise between the throughput and user fairness. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | cell-free massive multiple-input multiple-output, / dynamic time-division duplexing, / convex optimization / fracfractional programming / convex-concave procedure |
| Paper # | RCS2021-115 |
| 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) | Resource Allocation and Beamforming Design Considering User Fairness for Cell-Free Massive MIMO System with Dynamic TDD |
| Sub Title (in English) | |
| Keyword(1) | cell-free massive multiple-input multiple-output, |
| Keyword(2) | dynamic time-division duplexing, |
| Keyword(3) | convex optimization |
| Keyword(4) | fracfractional programming |
| Keyword(5) | convex-concave procedure |
| 1st Author's Name | Shuto Fukue |
| 1st Author's Affiliation | The University of Electro-Communications(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 | Koji Ishibashi |
| 4th Author's Affiliation | The University of Electro-Communications(UEC) |
| Date | 2021-08-27 |
| Paper # | RCS2021-115 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-153 |
| Page | pp.pp.85-90(RCS), |
| #Pages | 6 |
| Date of Issue | 2021-08-19 (RCS) |