Paper Abstract and Keywords |
Presentation |
2006-07-19 17:10
MAP Signal Detecting Using Adapitive Channel Estimation Based on BCJR Algorithm Songyan Wang, Kazuhiko Fukawa, Hiroshi Suzuki (TITech) RCS2006-70 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This report theoretically derives joint processing of the maximum a posteriori (MAP) signal detection with channel estimation by the Kalman filter or the LMS algorithm, for a single-carrier mobile communication on frequency-selective fast fading channels. The proposed receiver consists of (i) a MAP equalizer that jointly performs channel estimation and equalization, and (ii) a MAP decoder for a channel coding. They provide each other with {\it a priori} Log-Likelihood Ratio (LLR) and {\it a posteriori} LLR of coded bits by iterative processing in order to enhance reliability of the signal detection. To track the fast fading fluctuation, the MAP equalizer estimates the channel impulse responses for every state by the Kalman filter or the LMS algorithm, and then calculates LLR of the coded bits by the Max-Log-MAP algorithm upon the basis of the BCJR algorithms. Computer simulations under a fast multipath fading condition demonstrate that the proposed scheme is much superior in BER performance to conventional ones employing the soft or hard decision feedback channel estimation. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Mobile communication / fast fading / MAP estimation / BCJR algorithm / Kalman filter / LMS algorithm / / |
Reference Info. |
IEICE Tech. Rep., vol. 106, no. 168, RCS2006-70, pp. 67-72, July 2006. |
Paper # |
RCS2006-70 |
Date of Issue |
2006-07-12 (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) |
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RCS2006-70 |
Conference Information |
Committee |
RCS NS |
Conference Date |
2006-07-19 - 2006-07-21 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Hokkaido Univ. |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
RCS |
Conference Code |
2006-07-RCS-NS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
MAP Signal Detecting Using Adapitive Channel Estimation Based on BCJR Algorithm |
Sub Title (in English) |
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Keyword(1) |
Mobile communication |
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fast fading |
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MAP estimation |
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BCJR algorithm |
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Kalman filter |
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LMS algorithm |
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1st Author's Name |
Songyan Wang |
1st Author's Affiliation |
Tokyo Institute of Technology (TITech) |
2nd Author's Name |
Kazuhiko Fukawa |
2nd Author's Affiliation |
Tokyo Institute of Technology (TITech) |
3rd Author's Name |
Hiroshi Suzuki |
3rd Author's Affiliation |
Tokyo Institute of Technology (TITech) |
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Speaker |
Author-1 |
Date Time |
2006-07-19 17:10:00 |
Presentation Time |
20 minutes |
Registration for |
RCS |
Paper # |
RCS2006-70 |
Volume (vol) |
vol.106 |
Number (no) |
no.168 |
Page |
pp.67-72 |
#Pages |
6 |
Date of Issue |
2006-07-12 (RCS) |
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