| Presentation | 2016-04-22 A Study on Low-Complexity Belief Propagation Detection Using Sorted-QR Decomposition for Large MIMO Systems Shogo Tanabe, Koji Ishibashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a low-complexity signal detection for large multi-input multi-output (MIMO) systems with around ten transmit/receive antennas. Specifically, we first propose sorted QR-decomposed Gaussian belief propagation (Sorted QR-GA-BP) and show that the performance of Sorted QR-GA-BP is close to that of conventional belief propagation (BP) detection while its complexity is almost same as conventional Gaussian belief propagation (GA-BP) detection. Furthermore, we propose a novel subgraph decomposition of the factor graph defined by QR decomposed channel matrix and further propose QR-decomposed subgraph belief propagation (QR-SG-BP) detection. Computer simulations reveal that proposed QR-SG-BP achieves the superior performance close to maximum likelihood detection (MLD) while its complexity is lower than conventional BP. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Large MIMO system / Gaussian belief propagation / Sorted QR decomposition / Subgraph decomposition |
| Paper # | RCS2016-15 |
| Date of Issue | 2016-04-14 (RCS) |
| Conference Information | |
| Committee | RCS |
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| Conference Date | 2016/4/21(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Romantopia, A Landscape of Forest and Stars, Hirosaki City |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Radio Access Technologies, etc. |
| Chair | Makoto Taromaru(Fukuoka Univ.) |
| Vice Chair | Hidekazu Murata(Kyoto Univ.) / Satoshi Denno(Okayama Univ.) / Yukitoshi Sanada(Keio Univ.) |
| Secretary | Hidekazu Murata(Mitsubishi Electric) / Satoshi Denno(NTT DoCoMo) / Yukitoshi Sanada |
| Assistant | Jun Mashino(NTT) / Tetsuya Yamamoto(Panasonic) / Takamichi Inoue(NEC) / Tomoya Tandai(Toshiba) / Toshihiko Nishimura(Hokkaido Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Radio Communication Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Low-Complexity Belief Propagation Detection Using Sorted-QR Decomposition for Large MIMO Systems |
| Sub Title (in English) | |
| Keyword(1) | Large MIMO system |
| Keyword(2) | Gaussian belief propagation |
| Keyword(3) | Sorted QR decomposition |
| Keyword(4) | Subgraph decomposition |
| 1st Author's Name | Shogo Tanabe |
| 1st Author's Affiliation | The University of Electro-Communications(The Univ. Electro-Commun.) |
| 2nd Author's Name | Koji Ishibashi |
| 2nd Author's Affiliation | The University of Electro-Communications(The Univ. Electro-Commun.) |
| Date | 2016-04-22 |
| Paper # | RCS2016-15 |
| Volume (vol) | vol.116 |
| Number (no) | RCS-11 |
| Page | pp.pp.83-88(RCS), |
| #Pages | 6 |
| Date of Issue | 2016-04-14 (RCS) |