| Presentation | 2016-03-04 A study of regenerative relay in linearly precoded MU-MIMO downlink Kentaro Iida, Yasunori Iwanami, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, Muti-User MIMO (MU-MIMO) downlink system which uses multiple transmit antennas at base station and accommodates multiple users with multiple receive antennas attracts much attention. In MU-MIMO downlink system, by knowing the Channel State Information (CSI) at the base station, Inter User Interferences (IUI’s) among users are pre-excluded at the base station. By increasing the number of transmit antennas at base station assigned to each user, the transmission quality of each user is improved. In MU-MIMO, there exists linear precoding or nonlinear precoding method, but linear precoding is considered more easily implemented and adjusted than nonlinear precoding. In this paper, we aim to extend the coverage and improve the transmission quality by using a regenerative Detect & Forward (DF) relay in MU-MIMO downlink system with BD (Block Diagonalization) + Eigen mode transmission (E-SDM). By sharing the block diagonalization matrix at both base station and DF relay, the DF relay can detect the receive signal only with the receive CSI and can forward the signal to each user during the second time slot also by using BD + Eigen mode transmission. Under this system configuration, we have shown the effectiveness of using regenerative relay. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MU-MIMO / Block Diagonalization / Eigen mode transmission / Regenerative relay / Detect & Forward |
| Paper # | RCS2015-396 |
| Date of Issue | 2016-02-24 (RCS) |
| Conference Information | |
| Committee | RCS / CCS / SR / SRW |
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| 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 |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study of regenerative relay in linearly precoded MU-MIMO downlink |
| Sub Title (in English) | |
| Keyword(1) | MU-MIMO |
| Keyword(2) | Block Diagonalization |
| Keyword(3) | Eigen mode transmission |
| Keyword(4) | Regenerative relay |
| Keyword(5) | Detect & Forward |
| 1st Author's Name | Kentaro Iida |
| 1st Author's Affiliation | Nagoya Institute of Technology(N.I.T.) |
| 2nd Author's Name | Yasunori Iwanami |
| 2nd Author's Affiliation | Nagoya Institute of Technology(N.I.T.) |
| Date | 2016-03-04 |
| Paper # | RCS2015-396 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-472 |
| Page | pp.pp.369-374(RCS), |
| #Pages | 6 |
| Date of Issue | 2016-02-24 (RCS) |