| Presentation | 2021-11-11 On Power Allocation Strategy for Realistic Cellular Structured Cluster-wise Distributed MU-MIMO System Sijie Xia, Chang Ge, Qiang Chen, Fumiyuki Adachi, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | With the demanding of higher capacity and higher data rate services in 5G-advanced systems, distributed multi-user multiple-input multiple-output (MU-MIMO) is a promising approach for radio access network (RAN). To avoid a prohibitively high signal processing complexity required for large-scale MU-MIMO, we have been studying cluster-wise distributed MU-MIMO for 5G advanced RAN. Multiple clusters are formed in each cell by K-means algorithm using user locations information. Unfortunately, cluster-wise distributed MU-MIMO introduces the inter-cluster-interference, thereby degrading the link capacity. In order to mitigate the capacity reduction, we recently proposed a sum capacity maximization-based power allocation strategy assuming an unrealistic square-shaped cellular structure. It should be noted that the cluster shape may be different for a different cellular structure, resulting in a different inter-cluster interference. The aim of this paper is to evaluate the impact of sum capacity maximization-based power allocation strategy in the case of a realistic cellular structure. In this paper, a previously proposed modified K-means based cellular structuring method using antenna locations is considered. The link capacity evaluation is carried out by computer simulation assuming both the close-to-realistic cellular structure and the simple but unrealistic square-shaped cellular structure. It is shown that our previously proposed optimal power allocation strategy can effectively improve the link capacity even in the case of the close-to-realistic cellular structure. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G-advancedDistributed antenna systemClusteringK-meansPower allocation |
| Paper # | RCS2021-157 |
| Date of Issue | 2021-11-03 (RCS) |
| Conference Information | |
| Committee | AP / RCS |
|---|---|
| Conference Date | 2021/11/10(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NBC-Bekkan (Nagasaki) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Adaptive Antenna, Equalization, Interference Canceler, MIMO, Wireless Communications, etc. |
| Chair | Hiroshi Yamada(Niigata Univ.) / Eiji Okamoto(Nagoya Inst. of Tech.) |
| Vice Chair | Mitoshi Fujimoto(Fukui Univ) / Toshihiko Nishimura(Hokkaido Univ.) / Tomoya Tandai(Toshiba) / Fumihide Kojima(NICT) |
| Secretary | Mitoshi Fujimoto(NTT DOCOMO) / Toshihiko Nishimura(National Defense Academy) / Tomoya Tandai(NEC) / Fumihide Kojima(Panasonic) |
| Assistant | Dr. Kim(Niigata Univ.) / 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 Antennas and Propagation / Technical Committee on Radio Communication Systems |
|---|---|
| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On Power Allocation Strategy for Realistic Cellular Structured Cluster-wise Distributed MU-MIMO System |
| Sub Title (in English) | |
| Keyword(1) | 5G-advancedDistributed antenna systemClusteringK-meansPower 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 | 2021-11-11 |
| Paper # | RCS2021-157 |
| Volume (vol) | vol.121 |
| Number (no) | RCS-234 |
| Page | pp.pp.75-79(RCS), |
| #Pages | 5 |
| Date of Issue | 2021-11-03 (RCS) |