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| Presentation | 2007-12-14 09:00 Performance Evaluation of Blind Estimation Scheme for Rate Compatible Punctured Turbo Codes Based on Likelihood Information Wataru Gotoh, Tetsuo Tsujioka (Osaka City Univ.)  CS2007-40 IE2007-123 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, rate compatible codes using turbo codes and low density parity check (LDPC) codes have attracted attention. These codes can provide codewords with various error tolerances easily and flexibly, still having potentially powerfull error correcting abilities. So, by selecting optimum code rate for channel state at the transmitter, we can improve transmission efficiency. However, in this system, the receiver has possibilities of decoding with incorrect rate because of no knowledge of the rate selected at the transmitter. Indeed, use of side information for notification of the rate is one of easy ways to be considered. But this way increases redundancy and causes degradation of transmission efficiency. Therefore the scheme that the receiver can know the rate of transmitted codeword without side information is necessary. In this paper, we evaluate the performance of a blind estimation scheme based on likelihood information for Rate Compatible Punctured Turbo (RCPT) codes. We consider the scheme using side information encoded by BCH codes as comparison scheme. By computer simulations, we compare these schemes and show the effectiveness of the blind estimation scheme based on likelihood information. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Rate Compatible Punctured Turbo (RCPT) Codes / Rate Estimation / A Posteriori Log Likelihood Ratio (LLR) / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 379, CS2007-40, pp. 63-70, Dec. 2007. | |
| Paper # | CS2007-40 | |
| Date of Issue | 2007-12-06 (CS, IE) | |
| 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 | CS2007-40 IE2007-123 |
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| Conference Information | |
| Committee | IE IPSJ-AVM CS ITE-BCT |
| Conference Date | 2007-12-13 - 2007-12-14 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Image coding, Communications and Stream Technologies, etc. |
| Paper Information | |
| Registration To | CS |
| Conference Code | 2007-12-IE-IPSJ-AVM-CS-ITE-BCT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Performance Evaluation of Blind Estimation Scheme for Rate Compatible Punctured Turbo Codes Based on Likelihood Information |
| Sub Title (in English) | |
| Keyword(1) | Rate Compatible Punctured Turbo (RCPT) Codes |
| Keyword(2) | Rate Estimation |
| Keyword(3) | A Posteriori Log Likelihood Ratio (LLR) |
| Keyword(4) | |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Wataru Gotoh |
| 1st Author's Affiliation | Osaka City University (Osaka City Univ.) |
| 2nd Author's Name | Tetsuo Tsujioka |
| 2nd Author's Affiliation | Osaka City University (Osaka City Univ.) |
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| Speaker | Author-1 |
| Date Time | 2007-12-14 09:00:00 |
| Presentation Time | 25 minutes |
| Registration for | CS |
| Paper # | CS2007-40, IE2007-123 |
| Volume (vol) | vol.107 |
| Number (no) | no.379(CS), no.380(IE) |
| Page | pp.63-70 |
| #Pages | 8 |
| Date of Issue | 2007-12-06 (CS, IE) |
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