| Presentation | 2017-06-21 Performance Evaluation on Beam Selection Rules and Beam Shapes of a Massive MIMO System in Time-varying Environments Jumpei Yamamoto, Toshihiko Nishimura, Takeo Ohgane, Yasutaka Ogawa, Daiki Takeda, Yoshihisa Kishiyama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In massive MIMO systems, there have already been a number of papers on 2-step beamforming that forms a precoder in a beam space with a limited number of beams. It is very important to use a proper shape of base beams and a proper criterion for beam selection. In the paper, we evaluate the performance dependency on beam shapes: a DFT based beam, Chebyshev weighted beams, and a Gaussian weighted beam. In addition, we test two different criteria for beam selection: a received power basis and an angle difference basis. The evaluation results show that higher throughputs can be provided by the Chebyshev beam and the angle-difference-based selection in most cases. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G / Massive MIMO / Higher frequency band / Hybrid beamforming |
| Paper # | RCS2017-55 |
| Date of Issue | 2017-06-14 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2017/6/21(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ishigaki Shoukou Kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | First Presentation in IEICE Technical Committee, Railroad Communications, Inter-Vehicle Communications, Road to Vehicle Communications, Resource Control, Scheduling, Wireless Communication Systems, 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 DOCOMO) / 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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance Evaluation on Beam Selection Rules and Beam Shapes of a Massive MIMO System in Time-varying Environments |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | Massive MIMO |
| Keyword(3) | Higher frequency band |
| Keyword(4) | Hybrid beamforming |
| 1st Author's Name | Jumpei Yamamoto |
| 1st Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 2nd Author's Name | Toshihiko Nishimura |
| 2nd Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 3rd Author's Name | Takeo Ohgane |
| 3rd Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 4th Author's Name | Yasutaka Ogawa |
| 4th Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 5th Author's Name | Daiki Takeda |
| 5th Author's Affiliation | NTTDocomo(NTTDocomo) |
| 6th Author's Name | Yoshihisa Kishiyama |
| 6th Author's Affiliation | NTTDocomo(NTTDocomo) |
| Date | 2017-06-21 |
| Paper # | RCS2017-55 |
| Volume (vol) | vol.117 |
| Number (no) | RCS-103 |
| Page | pp.pp.31-36(RCS), |
| #Pages | 6 |
| Date of Issue | 2017-06-14 (RCS) |