| Presentation | 2018-03-01 Improving Semi-Blind Interference Suppression Performance on Multicell Massive MIMO Uplink by Beamspace Method Kazuki Maruta, Chang-Jun Ahn, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper improves our previously proposed semi-blind uplink interference suppression scheme for multicell multiuser massive MIMO systems by employing beamspace approach. Constant modulus algorithm (CMA) known as a blind adaptive array scheme can fully exploit degree of freedom (DoF) of massive antenna array to suppress inter-user interference (IUI) and inter-cell interference (ICI). Meanwhile, it excessively consumes DoF when the number of incoming signal is fewer than that of receiving antenna elements. We introduce beamspace method which converts the number of array input from the antenna-space to the beamspace and controls DoF expended for semi-blind interference suppression. It can optimize the array gain and interference suppression ability and resultant output signal-to-interference and noise power ratio (SINR) can be improved. Computer simulation reveals the improved SINR and outage probability performances. It can also contribute to reduce the required number of data symbols. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Massive MIMO / Multicell / Adaptive array / Constant modulus algorithm / Pilot contamination / Channel estimation / Decision feedback / Beamspace |
| Paper # | RCS2017-346 |
| Date of Issue | 2018-02-21 (RCS) |
| Conference Information | |
| Committee | RCS / SR / SRW |
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| Conference Date | 2018/2/28(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Hidekazu Murata(Kyoto Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Tadao Nakagawa(Tottori Univ.) |
| Vice Chair | Yukitoshi Sanada(Keio Univ.) / Eisuke Fukuda(Fujitsu Labs.) / Satoshi Suyama(NTT DoCoMo) / Masayuki Ariyoshi(NEC) / Suguru Kameda(Tohoku Univ.) / Satoshi Denno(Okayama Univ.) / Makoto Hamaminato(Fujitsu labs.) |
| Secretary | Yukitoshi Sanada(Toshiba) / Eisuke Fukuda(Hokkaido Univ.) / Satoshi Suyama(NICT) / Masayuki Ariyoshi(ATR) / Suguru Kameda(NICT) / Satoshi Denno(Kyoto Univ.) / Makoto Hamaminato |
| Assistant | Tetsuya Yamamoto(Panasonic) / Koichi Ishihara(NTT) / Kazushi Muraoka(NEC) / Shinsuke Ibi(Osaka Univ.) / Hiroshi Nishimoto(Mitsubishi Electric) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Syusuke Narieda(NIT, Akashi College) / Kentaro Saito(Tokyo Inst. of Tech.) / Hiromasa Yamauchi(Fujitsu labs.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improving Semi-Blind Interference Suppression Performance on Multicell Massive MIMO Uplink by Beamspace Method |
| Sub Title (in English) | |
| Keyword(1) | Massive MIMO |
| Keyword(2) | Multicell |
| Keyword(3) | Adaptive array |
| Keyword(4) | Constant modulus algorithm |
| Keyword(5) | Pilot contamination |
| Keyword(6) | Channel estimation |
| Keyword(7) | Decision feedback |
| Keyword(8) | Beamspace |
| 1st Author's Name | Kazuki Maruta |
| 1st Author's Affiliation | Chiba University(Chiba Univ.) |
| 2nd Author's Name | Chang-Jun Ahn |
| 2nd Author's Affiliation | Chiba University(Chiba Univ.) |
| Date | 2018-03-01 |
| Paper # | RCS2017-346 |
| Volume (vol) | vol.117 |
| Number (no) | RCS-456 |
| Page | pp.pp.167-172(RCS), |
| #Pages | 6 |
| Date of Issue | 2018-02-21 (RCS) |