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| Presentation | 2012-03-07 10:15 Performance Improvement of Lattice-Reduction-Aided MIMO Detector with Soft Output Generation Daisuke Nojima, Leonardo Lanante, Yuhei Nagao, Masayuki Kurosaki, Hiroshi Ochi (KIT)  RCS2011-319 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (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. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | MIMO / OFDM / LRA-Detection / Soft Decision Decoder / IEEE 802.11ac / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 451, RCS2011-319, pp. 19-24, March 2012. | |
| Paper # | RCS2011-319 | |
| Date of Issue | 2012-02-29 (RCS) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | RCS2011-319 |
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| Conference Information | |
| Committee | SR RCS SRW |
| Conference Date | 2012-03-07 - 2012-03-09 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | YRP |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Mobile Communication Workshop |
| Paper Information | |
| Registration To | RCS |
| Conference Code | 2012-03-SR-RCS-SRW |
| Language | Japanese |
| 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 |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Daisuke Nojima |
| 1st Author's Affiliation | Kyushu Institute of Technology (KIT) |
| 2nd Author's Name | Leonardo Lanante |
| 2nd Author's Affiliation | Kyushu Institute of Technology (KIT) |
| 3rd Author's Name | Yuhei Nagao |
| 3rd Author's Affiliation | Kyushu Institute of Technology (KIT) |
| 4th Author's Name | Masayuki Kurosaki |
| 4th Author's Affiliation | Kyushu Institute of Technology (KIT) |
| 5th Author's Name | Hiroshi Ochi |
| 5th Author's Affiliation | Kyushu Institute of Technology (KIT) |
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| Speaker | Author-1 |
| Date Time | 2012-03-07 10:15:00 |
| Presentation Time | 25 minutes |
| Registration for | RCS |
| Paper # | RCS2011-319 |
| Volume (vol) | vol.111 |
| Number (no) | no.451 |
| Page | pp.19-24 |
| #Pages | 6 |
| Date of Issue | 2012-02-29 (RCS) |
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