| Presentation | 2016-03-04 Channel Prediction Using 2-Step Compressed Sensing in a Time-Varying Multi-User MIMO Environment Shunsuke Uehashi, Yasutaka Ogawa, Toshihiko Nishimura, Takeo Ohgane, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In multi-user MIMO systems, a base station needs downlink channel state information to each user to suppress interference. In time-varying environments, however, the channel transition over time causes the interference and deteriorates the PER performance. To solve this problem, we have proposed a channel prediction scheme using a compressed sensing technique. This scheme can predict channels with high accuracy when scatterers are stationary. In real environments, however, this assumption does not hold. In this paper, we propose a prediction scheme based on 2-step compressed sensing. In the first step, we estimate directions of arrivals (DOAs) of multipath signals. In the second step, we estimate Doppler frequencies and complex amplitudes of the multipath signals using the DOA information. From these values, we predict the MIMO channels. The performance of this scheme is shown in this paper. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | channel prediction / multi-user MIMO system / compressed sensing / SOS method / direction-of-arrival estimation |
| Paper # | RCS2015-394 |
| Date of Issue | 2016-02-24 (RCS) |
| Conference Information | |
| Committee | RCS / CCS / SR / SRW |
|---|---|
| Conference Date | 2016/3/2(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Tokyo Institute of Technology |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Chair | Makoto Taromaru(Fukuoka Univ.) / Hiroo Sekiya(Chiba Univ.) / Takeo Fujii(Univ. of Electro-Comm.) / Hiroshi Harada(Kyoto Univ.) |
| Vice Chair | Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Yasuhiro Tsubo(Ritsumeikan Univ.) / Naoki Wakamiya(Osaka Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) / Masafumi Kato(Fujitsu) / Satoshi Denno(Okayama Univ.) |
| Secretary | Hidekazu Murata(Mitsubishi Electric) / Satoshi Denno(NTT DoCoMo) / Yukitoshi Sanada(Kagawa National College of Tech.) / Yasuhiro Tsubo(Kyoto Sangyo Univ.) / Naoki Wakamiya(Shinshu Univ.) / Kenta Umebayashi(NICT) / Masayuki Ariyoshi(NTT) / Masafumi Kato(NICT) / Satoshi Denno |
| Assistant | Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Takayuki Kimura(Nippon Inst. of Tech.) / Song-Ju Kim(NIMS) / Ryo Takahashi(Kyoto Univ.) / Junnosuke Teramae(Osaka Univ.) / Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) / Wen Yun(Fujitsu) / Keiichi Mizutani(Kyoto Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems / Technical Committee on Complex Communication Sciences / Technical Committee on Smart Radio / Technical Committee on Short Range Wireless Communications |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Channel Prediction Using 2-Step Compressed Sensing in a Time-Varying Multi-User MIMO Environment |
| Sub Title (in English) | |
| Keyword(1) | channel prediction |
| Keyword(2) | multi-user MIMO system |
| Keyword(3) | compressed sensing |
| Keyword(4) | SOS method |
| Keyword(5) | direction-of-arrival estimation |
| 1st Author's Name | Shunsuke Uehashi |
| 1st Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 2nd Author's Name | Yasutaka Ogawa |
| 2nd Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 3rd Author's Name | Toshihiko Nishimura |
| 3rd Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| 4th Author's Name | Takeo Ohgane |
| 4th Author's Affiliation | Hokkaido University(Hokkaido Univ.) |
| Date | 2016-03-04 |
| Paper # | RCS2015-394 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-472 |
| Page | pp.pp.357-362(RCS), |
| #Pages | 6 |
| Date of Issue | 2016-02-24 (RCS) |