| Presentation | 2022-04-22 Capacity-Fairness Tradeoff-aware Optimal Power Allocation for Cluster-wise Distributed MU-MIMO System Sijie Xia, Chang Ge, Qiang Chen, Fumiyuki Adachi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | According to the ever-increasing mobile data traffic, ultra-dense distributed antenna system is recommended to support the 5G-advanced system. To mitigate the prohibitively high computational complexity of ultra-dense network, user-clustering is introduced into distributed multiuser multi-input multi-output (MU-MIMO) system and to perform cluster-wise MU-MIMO communication in parallel. However, user-clustering leads to a capacity degradation due to the inter-cluster-interference. Reasonable power allocation strategy can make up this capacity degradation. In our previous study, a sum capacity maximization-based power allocation strategy was proposed while guaranteeing the minimum user capacity under the total transmit power constraint. The user fairness is also a big issue. In this paper, we propose an optimal power allocation (OPA) method which can flexibly tradeoff the sum capacity and the user fairness while guaranteeing the minimum user capacity under the total transmit power constraint. Moreover, we utilize the weighted sum method which integrates two objectives into one. The simulation results show that the proposed power allocation can effectively control a tradeoff between the sum capacity and the user fairness while guaranteeing the minimum user capacity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G-advancedultra-dense networkdistributed antenna systemclusteringpower allocation |
| Paper # | RCS2022-7 |
| Date of Issue | 2022-04-14 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2022/4/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka University, and online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Radio Access Technologies, Wireless Communications, 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 | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Capacity-Fairness Tradeoff-aware Optimal Power Allocation for Cluster-wise Distributed MU-MIMO System |
| Sub Title (in English) | |
| Keyword(1) | 5G-advancedultra-dense networkdistributed antenna systemclusteringpower allocation |
| 1st Author's Name | Sijie Xia |
| 1st Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 2nd Author's Name | Chang Ge |
| 2nd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 3rd Author's Name | Qiang Chen |
| 3rd Author's Affiliation | Tohoku University(Tohoku Univ.) |
| 4th Author's Name | Fumiyuki Adachi |
| 4th Author's Affiliation | Tohoku University(Tohoku Univ.) |
| Date | 2022-04-22 |
| Paper # | RCS2022-7 |
| Volume (vol) | vol.122 |
| Number (no) | RCS-6 |
| Page | pp.pp.30-34(RCS), |
| #Pages | 5 |
| Date of Issue | 2022-04-14 (RCS) |