| Presentation | 2016-04-22 Multiuser Parallel Transmission by Sub Array Time Domain Beamforming on Massive MIMO using Higher Frequency Bands Kazuki Maruta, Atsushi Ohta, Takuto Arai, Yushi Shirato, Satoshi Kurosaki, Tatsuhiko Iwakuni, Masataka Iizuka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Drastic improvements of transmission rate and system capacity are required towards 5th generation mobile communications (5G). As promising approaches, one is utilizing higher frequency band which remains rich spectrum resources and another is application of massive MIMO to compensate area coverage shortfall due to the large propagation loss while obtaining high order spatial multiplexing gain. With Line of Sight (LOS) dominant channel environment, multiuser (MU-) MIMO is also effective in further enhancing system capacity. Focusing on high beamforming gain provided by massive antenna array, this paper investigates feasibility of multiuser parallel transmission by sub-arrayed base station and beamforming. Each sub-array conducts the first eigenmode transmission and thus one stream is allocated per user without null-forming. This paper also employs previously proposed 1-tap time domain beamforming (TDBF) which simplifies calculation complexity of precoding. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Massive MIMO / Sub Array / 1st Eigenmode Transmission / Time Domain Beamforming / Parallel Transmission |
| Paper # | RCS2016-20 |
| Date of Issue | 2016-04-14 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2016/4/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Romantopia, A Landscape of Forest and Stars, Hirosaki City |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radio Access Technologies, 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) | Multiuser Parallel Transmission by Sub Array Time Domain Beamforming on Massive MIMO using Higher Frequency Bands |
| Sub Title (in English) | |
| Keyword(1) | Massive MIMO |
| Keyword(2) | Sub Array |
| Keyword(3) | 1st Eigenmode Transmission |
| Keyword(4) | Time Domain Beamforming |
| Keyword(5) | Parallel Transmission |
| 1st Author's Name | Kazuki Maruta |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 2nd Author's Name | Atsushi Ohta |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 3rd Author's Name | Takuto Arai |
| 3rd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 4th Author's Name | Yushi Shirato |
| 4th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 5th Author's Name | Satoshi Kurosaki |
| 5th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 6th Author's Name | Tatsuhiko Iwakuni |
| 6th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 7th Author's Name | Masataka Iizuka |
| 7th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| Date | 2016-04-22 |
| Paper # | RCS2016-20 |
| Volume (vol) | vol.116 |
| Number (no) | RCS-11 |
| Page | pp.pp.111-116(RCS), |
| #Pages | 6 |
| Date of Issue | 2016-04-14 (RCS) |