| Presentation | 2015-07-29 Block Lower Multi-diagonalization for Multiuser MIMO Downlink Hiroshi Nishimoto, Akinori Taira, Akihiro Okazaki, Atsushi Okamura, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For multiuser-MIMO (MU-MIMO) downlink, the authors propose a novel precoding concept of block lower multi-diagonalization. Extending the conventional block diagonalization method, the proposed precoder for the desired user is computed to incorporate a predetermined number of interfering users. Consequently, the concept enables us to ensure the extra degree of freedom at the transmit array even after null steering in a linear MU-MIMO strategy, and also to reduce computational load at transmit precanceling in a nonlinear MU-MIMO strategy. From an implementational viewpoint, we here examine two approaches: block bi-diagonalization, allowing one interfering user, and block lower tri-diagonalization, allowing up to two interfering users. In the paper, we reveal the significant potential of the proposed concept through the discussion and numerical evaluation using sum-rate capacity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | multiuser-MIMO / MU-MIMO / inter-user interference / IUI / precoding / block lower multi-diagonalization |
| Paper # | RCS2015-101 |
| Date of Issue | 2015-07-22 (RCS) |
| Conference Information | |
| Committee | RCC / ASN / RCS / NS / SR |
|---|---|
| Conference Date | 2015/7/29(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | JA Naganoken Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Wireless Distributed Network, M2M: Machine-to-Machine, D2D (Device-to-Device)，etc. |
| Chair | Masaaki Katayama(Nagoya Univ.) / Hiroshi Tohjo(NTT) / Makoto Taromaru(Fukuoka Univ.) / Atsushi Hiramatsu(NTT-AT) / Takeo Fujii(Univ. of Electro-Comm.) |
| Vice Chair | Shinsuke Hara(Osaka City Univ.) / Ryu Miura(NICT) / Hiroo Sekiya(Chiba Univ.) / Hiraku Okada(Nagoya Univ.) / Kiyohito Yoshihara(KDDI R&D Labs.) / Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) / Hideki Tode(Osaka Pref. Univ.) / Kenta Umebayashi(Tokyo Univ. of Agric. and Tech.) / Masayuki Ariyoshi(NEC) |
| Secretary | Shinsuke Hara(Kyoto Univ.) / Ryu Miura(Hokkaido Univ.) / Hiroo Sekiya(Kanagawa Inst. of Tech.) / Hiraku Okada(NTT) / Kiyohito Yoshihara(Mitsubishi Electric) / Hidekazu Murata(NTT DoCoMo) / Satoshi Denno(Univ. of Fukui) / Yukitoshi Sanada(NTT) / Hideki Tode(Shinshu Univ.) / Kenta Umebayashi(NICT) / Masayuki Ariyoshi |
| Assistant | Koji Ishii(Kagawa Univ.) / Kentaro Kobayashi(Nagoya Univ.) / Yuichi Igarashi(Hitachi) / Katsuhiro Naito(Aichi Inst. of Tech.) / Kiyohiko Hattori(NICT) / Hiroshi Fujita(Fujitsu Labs.) / Takuro Yonezawa(Keio Univ.) / Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) / Shohei Kamamura(NTT) / Kazuto Yano(ATR) / Mamiko Inamori(Tokai Univ.) / Hiroyuki Shiba(NTT) / Gia Khanh Tran(Tokyo Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Reliable Communication and Control / Technical Committee on Ambient intelligence and Sensor Networks / Technical Committee on Radio Communication Systems / Technical Committee on Network Systems / Technical Committee on Smart Radio |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Block Lower Multi-diagonalization for Multiuser MIMO Downlink |
| Sub Title (in English) | |
| Keyword(1) | multiuser-MIMO |
| Keyword(2) | MU-MIMO |
| Keyword(3) | inter-user interference |
| Keyword(4) | IUI |
| Keyword(5) | precoding |
| Keyword(6) | block lower multi-diagonalization |
| 1st Author's Name | Hiroshi Nishimoto |
| 1st Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| 2nd Author's Name | Akinori Taira |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| 3rd Author's Name | Akihiro Okazaki |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| 4th Author's Name | Atsushi Okamura |
| 4th Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric Corp.) |
| Date | 2015-07-29 |
| Paper # | RCS2015-101 |
| Volume (vol) | vol.115 |
| Number (no) | RCS-160 |
| Page | pp.pp.7-12(RCS), |
| #Pages | 6 |
| Date of Issue | 2015-07-22 (RCS) |