| Presentation | 2015-11-04 Transmission Performance Evaluation of Multiuser Massive MIMO Null-Space Expansion for Time Varying Channel Tatsuhiko Iwakuni, Kazuki Maruta, Atsushi Ohta, Yushi Shirato, Takuto Arai, Masataka Iizuka, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Inter-user interference (IUI) caused by channel time variation reduces multiuser MIMO transmission capacity. Massive MIMO null-space expansion was proposed to suppress it. This paper further investigates IUI suppression performance of null-space expansion by focusing propagation parameters such as K factor and angular spread which affect channel correlation. The vector space of channel time variation is evaluated by using singular value decomposition. IUI suppression via null-space expansion becomes effective in LoS (Line-of-Sight) dominant channel environment, which provides limited vector space of channel time variation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Massive MIMO / Channel Time Variation / Inter-User Interference / Null-Space Expansion |
| Paper # | RCS2015-198 |
| Date of Issue | 2015-10-28 (RCS) |
| Conference Information | |
| Committee | AP / RCS / WPT / SAT |
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| Conference Date | 2015/11/4(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Prefectural Museum & Art Museum |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Antenna and Propagation, Radio Communication, Satelite Communication, Wireless Power Transfer |
| Chair | Keizo Cho(Chiba Inst. of Tech.) / Makoto Taromaru(Fukuoka Univ.) / Naoki Shinohara(Kyoto Univ.) / Morio Toyoshima(NICT) |
| Vice Chair | Hisato Iwai(Doshisha Univ.) / Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / / Takatoshi Sugiyama(Kogakuin Univ.) / Toshinori Susuki(Tohoku Gakuin Univ.) |
| Secretary | Hisato Iwai(KDDI R&D Labs.) / Hidekazu Murata(Niigata Univ.) / Satoshi Denno(Mitsubishi Electric) / Yukitoshi Sanada(NTT DoCoMo) / (Kagoshima Univ.) / Takatoshi Sugiyama(Toyohashi Univ. of Tech.) / Toshinori Susuki(NICT) |
| Assistant | Yuichi Kimura(Saitama Univ.) / Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Takashi Hikagae(Hokkaido Univ.) / Tsunayuki Yamamoto(Yamaguchi Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Antennas and Propagation / Technical Committee on Radio Communication Systems / Technical Committee on Wireless Power Transfer / Technical Committee on Satellite Telecommunications |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Transmission Performance Evaluation of Multiuser Massive MIMO Null-Space Expansion for Time Varying Channel |
| Sub Title (in English) | |
| Keyword(1) | Massive MIMO |
| Keyword(2) | Channel Time Variation |
| Keyword(3) | Inter-User Interference |
| Keyword(4) | Null-Space Expansion |
| 1st Author's Name | Tatsuhiko Iwakuni |
| 1st Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 2nd Author's Name | Kazuki Maruta |
| 2nd Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 3rd Author's Name | Atsushi Ohta |
| 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 | Takuto Arai |
| 5th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| 6th Author's Name | Masataka Iizuka |
| 6th Author's Affiliation | Nippon Telegraph and Telephone Corporation(NTT) |
| Date | 2015-11-04 |
| Paper # | RCS2015-198 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-288 |
| Page | pp.pp.49-54(RCS), |
| #Pages | 6 |
| Date of Issue | 2015-10-28 (RCS) |