| Presentation | 2012-03-07 Performance Improvement of Lattice-Reduction-Aided MIMO Detector with Soft Output Generation Daisuke NOJIMA, Leonardo LANANTE, Yuhei NAGAO, Masayuki KUROSAKI, Hiroshi OCHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, Lattice Reduction Aided (LRA) Detection has attracted the attention of many researchers. As a Multiple-Input Multiple-Output (MIMO) decoder, it offers similar decoding accuracy as Maximum-Likelihood Detection (MLD) but with relatively lower complexity. In real systems, LRA-Detection is combined with forward error correction coding to further improve its performance. In order to obtain a higher error correction effect, soft-output LRA-Detection using the Log-Likelihood Ratio (LLR) has been studied. Conventional methods for soft-output generation in MIMO-OFDM systems are not optimal. This is because it does not consider the noise enhancement component which differs in each subcarrier. In this paper, we propose a soft-output LRA-Detection method by considering the noise enhancement component per subcarrier. We show the superiority of our proposed algorithm in IEEE 802.11ac next generation wireless LAN based systems through computer simulations. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | MIMO / OFDM / LRA-Detection / Soft Decision Decoder / IEEE 802.11ac |
| Paper # | RCS2011-319 |
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| Committee | RCS |
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| Conference Date | 2012/2/29(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance Improvement of Lattice-Reduction-Aided MIMO Detector with Soft Output Generation |
| Sub Title (in English) | |
| Keyword(1) | MIMO |
| Keyword(2) | OFDM |
| Keyword(3) | LRA-Detection |
| Keyword(4) | Soft Decision Decoder |
| Keyword(5) | IEEE 802.11ac |
| 1st Author's Name | Daisuke NOJIMA |
| 1st Author's Affiliation | Graduate School of Computer Science and Systems Engineering, Kyushu Institute of Technology() |
| 2nd Author's Name | Leonardo LANANTE |
| 2nd Author's Affiliation | Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology |
| 3rd Author's Name | Yuhei NAGAO |
| 3rd Author's Affiliation | Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology |
| 4th Author's Name | Masayuki KUROSAKI |
| 4th Author's Affiliation | Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology |
| 5th Author's Name | Hiroshi OCHI |
| 5th Author's Affiliation | Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology |
| Date | 2012-03-07 |
| Paper # | RCS2011-319 |
| Volume (vol) | vol.111 |
| Number (no) | 451 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |