| Presentation | 2019-04-19 A Study on Low Complexity Fair User Scheduling Employing Spatial Orthogonality for MU-MIMO Systems Ei Nandar Maung, Yukiko Shimbo, Hirofumi Suganuma, Fumiaki Maehara, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report proposes a low complexity fair user scheduling method employing semiorthogonal user selection (SUS) for multi-user multiple-input multi-output (MU-MIMO) systems. The intent of the proposed approach is to consider the spatial orthogonality of users into fair user scheduling of the MU-MIMO system, which enhances the system capacity when compared to the traditional round robin (RR) based user scheduling. In the proposed method, the spatial orthogonality is calculated based on SUS which only requires the calculation of inner products among the channel state information (CSI). Therefore, both the improvement of the system capacity and fairness can be achieved with a reduced computational load. Moreover, in contrast to proportional fairness (PF), the proposed user scheduling does not require the heavy calculation of all possible user combinations as is required in MU-MIMO precoding, which is an effective and practical approach. The effectiveness of the proposed method is demonstrated and compared with RR and PF in terms of fairness and computational load. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MU-MIMO / round robin / semiorthogonal user selection / computational cost / system capacity / fairness index |
| Paper # | RCS2019-13 |
| Date of Issue | 2019-04-11 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2019/4/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Noboribetsu Grand Hotel |
| 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 | Tomoaki Otsuki(Keio Univ.) |
| Vice Chair | Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT Docomo) / Fumiaki Maehara(Waseda Univ.) |
| Secretary | Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NTT) / Fumiaki Maehara |
| Assistant | Kazushi Muraoka(NTT DocomoO) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Koichi Adachi(Univ. of Electro-Comm.) / Osamu Nakamura(Sharp) |
| 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) | A Study on Low Complexity Fair User Scheduling Employing Spatial Orthogonality for MU-MIMO Systems |
| Sub Title (in English) | |
| Keyword(1) | MU-MIMO |
| Keyword(2) | round robin |
| Keyword(3) | semiorthogonal user selection |
| Keyword(4) | computational cost |
| Keyword(5) | system capacity |
| Keyword(6) | fairness index |
| 1st Author's Name | Ei Nandar Maung |
| 1st Author's Affiliation | Waseda University(Waseda Univ.) |
| 2nd Author's Name | Yukiko Shimbo |
| 2nd Author's Affiliation | Waseda University(Waseda Univ.) |
| 3rd Author's Name | Hirofumi Suganuma |
| 3rd Author's Affiliation | Waseda University(Waseda Univ.) |
| 4th Author's Name | Fumiaki Maehara |
| 4th Author's Affiliation | Waseda University(Waseda Univ.) |
| Date | 2019-04-19 |
| Paper # | RCS2019-13 |
| Volume (vol) | vol.119 |
| Number (no) | RCS-8 |
| Page | pp.pp.55-59(RCS), |
| #Pages | 5 |
| Date of Issue | 2019-04-11 (RCS) |