Paper Abstract and Keywords |
Presentation |
2011-03-04 10:20
A Dual-mode Channel Estimation Scheme using Log Likehood Ratio for COFDM Transmission Koushin Suzuki, Fumio Takahata (Waseda Univ.) CAS2010-146 SIP2010-162 CS2010-116 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Decision feedback channel estimation (DFCE) is one of the promising channel estimation schemes for OFDM transmission under fast fading channels. The paper proposes a fading compensation scheme to COFDM transmission of packet encoded by LDPC, where pilot symbols are inserted at both ends of each packet and DFCEs are carried out in dual modes from the both ends. The proposed scheme has a feature that, among bits compensated in the dual modes, a reliable bit is selected by comparing values of LLR (Log-Likelihood Ratio) and supplied to the LDPC decoding. Computer simulation results show that the proposed approach provides better BER than the traditional decision feedback channel estimation scheme. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
COFDM / DFCE / channel estimation / LDPC / LLR / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 441, CS2010-116, pp. 257-261, March 2011. |
Paper # |
CS2010-116 |
Date of Issue |
2011-02-24 (CAS, SIP, CS) |
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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CAS2010-146 SIP2010-162 CS2010-116 |
Conference Information |
Committee |
CS SIP CAS |
Conference Date |
2011-03-03 - 2011-03-04 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Ohhamanobumoto memorial hall (Ishigaki)( |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Network Processor, Signal Processing for Communications, Wireless LAN/PAN, etc. |
Paper Information |
Registration To |
CS |
Conference Code |
2011-03-CS-SIP-CAS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Dual-mode Channel Estimation Scheme using Log Likehood Ratio for COFDM Transmission |
Sub Title (in English) |
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Keyword(1) |
COFDM |
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DFCE |
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channel estimation |
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LDPC |
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LLR |
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1st Author's Name |
Koushin Suzuki |
1st Author's Affiliation |
Waseda University (Waseda Univ.) |
2nd Author's Name |
Fumio Takahata |
2nd Author's Affiliation |
Waseda University (Waseda Univ.) |
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Speaker |
Author-1 |
Date Time |
2011-03-04 10:20:00 |
Presentation Time |
20 minutes |
Registration for |
CS |
Paper # |
CAS2010-146, SIP2010-162, CS2010-116 |
Volume (vol) |
vol.110 |
Number (no) |
no.439(CAS), no.440(SIP), no.441(CS) |
Page |
pp.257-261 |
#Pages |
5 |
Date of Issue |
2011-02-24 (CAS, SIP, CS) |
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