| Presentation | 2016-05-20 Optimization of Number of Beams for 5G Low-SHF-Band Massive MIMO with Digital Beamforming in View of Insertion Loss of Pilot Signals Shohei Yoshioka, Satoshi Suyama, Tatsunori Obara, Tatsuki Okuyama, Jun Mashino, Yukihiko Okumura, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Toward 5th generation (5G) radio access network in mobile communications for super high bit rate and large system capacity, low-SHF-band is expected to realize super high data rate of more than 5 Gbps by using 2 streams spatial multiplexing to each of 8 users, with 100 MHz bandwidth and 128 transmit antenna elements. In low-SHF-band, full digital Massive MIMO technology can be applied and digital joint processing of fixed beamforming (BF) and CSI-based precoding (FBCP) has been proposed as a digital BF scheme. Previous study about digital FBCP assumed ideal CSI estimation. In this paper, we apply actual channel estimation with reference signals and optimize the number of beams in consideration of the insertion loss. This paper provides throughput performance of digital FBCP with downlink or uplink CSI estimation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | 5G / Low SHF band / Massive MIMO / Digital Beamforming / Channel Estimation |
| Paper # | RCS2016-42 |
| Date of Issue | 2016-05-12 (RCS) |
| Conference Information | |
| Committee | IN / RCS |
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| Conference Date | 2016/5/19(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hidetsugu Kobayashi(NTT) / Makoto Taromaru(Fukuoka Univ.) |
| Vice Chair | Katsunori Yamaoka(Tokyo Inst. of Tech.) / Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) |
| Secretary | Katsunori Yamaoka(NTT) / Hidekazu Murata(KDDI) / Satoshi Denno(Mitsubishi Electric) / Yukitoshi Sanada(NTT DoCoMo) |
| Assistant | Yuichi Sudo(NTT) / Kunitake Kaneko(Keio Univ.) / Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Information Networks / 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) | Optimization of Number of Beams for 5G Low-SHF-Band Massive MIMO with Digital Beamforming in View of Insertion Loss of Pilot Signals |
| Sub Title (in English) | |
| Keyword(1) | 5G |
| Keyword(2) | Low SHF band |
| Keyword(3) | Massive MIMO |
| Keyword(4) | Digital Beamforming |
| Keyword(5) | Channel Estimation |
| 1st Author's Name | Shohei Yoshioka |
| 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 | Tatsuki Okuyama |
| 4th Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 5th Author's Name | Jun Mashino |
| 5th Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| 6th Author's Name | Yukihiko Okumura |
| 6th Author's Affiliation | NTT DOCOMO, INC.(NTT DOCOMO) |
| Date | 2016-05-20 |
| Paper # | RCS2016-42 |
| Volume (vol) | vol.116 |
| Number (no) | RCS-46 |
| Page | pp.pp.101-106(RCS), |
| #Pages | 6 |
| Date of Issue | 2016-05-12 (RCS) |