| Presentation | 2015-06-24 Performance Evaluation of Hybrid Beamforming Scheme for Multiuser Massive MIMO Transmission in High Frequency Bands Tatsuki Okuyama, Satoshi Suyama, Tatsunori Obara, Yukihiko Okumura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For the realization of a 5G wireless access network with super high bit rate and capacity, massive MIMO is introduced into small cells using higher frequency bands, and super high bit rate transmission with more than 10 Gbps data rate has been investigated. In massive MIMO, from the point of view of realization, hybrid beamforming(BF) that combines analog BF with digital precoding has been proposed, and joint processing of analog fixed BF and channel state information (CSI)-based precoding (FBCP) can achieve a throughput of more than 20 Gbps by using 400 MHz bandwidth in the 20 GHz band under single user (SU) environment. In this report, we extend the FBCP for multiuser (MU) transmission and show the optimum BF weight search interval and the optimum number of beams. Furthermore, we also show the influence of the number of users and received antennas over 10 Gbps data rate. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G / Higher frequecy bands / Massive MIMO / Hybrid beamforming / Multiuser |
| Paper # | RCS2015-55 |
| Date of Issue | 2015-06-17 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2015/6/24(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Hokkaido Univ. |
| 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 | Makoto Taromaru(Fukuoka Univ.) |
| Vice Chair | Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) |
| Secretary | Hidekazu Murata(Mitsubishi Electric) / Satoshi Denno(NTT DoCoMo) / Yukitoshi Sanada |
| Assistant | Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) |
| 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 of Hybrid Beamforming Scheme for Multiuser Massive MIMO Transmission in High Frequency Bands |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | Higher frequecy bands |
| Keyword(3) | Massive MIMO |
| Keyword(4) | Hybrid beamforming |
| Keyword(5) | Multiuser |
| 1st Author's Name | Tatsuki Okuyama |
| 1st Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 2nd Author's Name | Satoshi Suyama |
| 2nd Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 3rd Author's Name | Tatsunori Obara |
| 3rd Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 4th Author's Name | Yukihiko Okumura |
| 4th Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| Date | 2015-06-24 |
| Paper # | RCS2015-55 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-113 |
| Page | pp.pp.55-60(RCS), |
| #Pages | 6 |
| Date of Issue | 2015-06-17 (RCS) |