Paper Abstract and Keywords |
Presentation |
2008-12-11 15:00
A study on SOVA decoder for iterative decoding in perpendicular magnetic recording Yasuaki Nakamura, Shintaro Harugaichi, Yoshihiro Okamoto, Hisashi Osawa (Ehime Univ.), Hiroaki Muraoka (Tohoku Univ.) MR2008-41 Link to ES Tech. Rep. Archives: MR2008-41 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
It is an issue that the iterative decoding system using the soft-output information based on a posteriori probability (APP) requires the huge memory. In this paper, the amount of required memory and the bit error rate performance are evaluated for two kinds of systems in a perpendicular magnetic recording channel model. A low density parity check (LDPC) code obtained by interleaving the overall code words and a structured random interleaved array (RIA)-LDPC code are combined with either soft output Viterbi algorithm(SOVA) decoder or APP decoder. The results show that the system adopting the RIA-LDPC code and the SOVA decoder reduces the memory by approximately 97\% compared to the combined system of another LDPC code and the APP decoder, while the SNR degrades about 0.4dB. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
SOVA decoder / perpendicular magnetic recording / RIA-LDPC code / amount of memory / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 108, Dec. 2008. |
Paper # |
|
Date of Issue |
2008-12-04 (MR) |
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 |
MR2008-41 Link to ES Tech. Rep. Archives: MR2008-41 |
Conference Information |
Committee |
MRIS ITE-MMS |
Conference Date |
2008-12-11 - 2008-12-12 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Ehime University |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
MRIS |
Conference Code |
2008-12-MR-MMS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A study on SOVA decoder for iterative decoding in perpendicular magnetic recording |
Sub Title (in English) |
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Keyword(1) |
SOVA decoder |
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perpendicular magnetic recording |
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RIA-LDPC code |
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amount of memory |
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1st Author's Name |
Yasuaki Nakamura |
1st Author's Affiliation |
Ehime University (Ehime Univ.) |
2nd Author's Name |
Shintaro Harugaichi |
2nd Author's Affiliation |
Ehime University (Ehime Univ.) |
3rd Author's Name |
Yoshihiro Okamoto |
3rd Author's Affiliation |
Ehime University (Ehime Univ.) |
4th Author's Name |
Hisashi Osawa |
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Ehime University (Ehime Univ.) |
5th Author's Name |
Hiroaki Muraoka |
5th Author's Affiliation |
Tohoku University (Tohoku Univ.) |
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Speaker |
Author-2 |
Date Time |
2008-12-11 15:00:00 |
Presentation Time |
30 minutes |
Registration for |
MRIS |
Paper # |
MR2008-41 |
Volume (vol) |
vol.108 |
Number (no) |
no.346 |
Page |
pp.19-24 |
#Pages |
6 |
Date of Issue |
2008-12-04 (MR) |