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Paper Abstract and Keywords
Presentation 2017-10-19 16:40
Performance improvement of iterative decoding by LLR modification using parity check information in SMR system
Madoka Nishikawa, Yasuaki Nakamura, Hisashi Osawa, Yoshihiro Okamoto (Ehime Univ.), Yasushi Kanai (Niigata Ins. of Tec.), Hiroaki Muraoka (Tohoku Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In recent years, an iterative decoding system using LDPC (low density parity-check) code as a powerful error correction code has been introduced to achieve high recording density recording for HDD (hard disk drive).In this report, we discuss the improvement of iterative decoding by modification of log-likelihood ratio LLR (log-likelihood ratio) in SMR (shingled magnetic recording). The results show that the sector with errors is recovered with error free by modifying LLRs.
Keyword (in Japanese) (See Japanese page) 
(in English) SMR / LDPC / LLR / Party check information / / / /  
Reference Info. ITE Tech. Rep.
Paper #  
Date of Issue  
ISSN Print edition: ISSN 1342-6893  Online edition: ISSN 2424-1970
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
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Conference Information
Committee IEICE-MRIS MMS  
Conference Date 2017-10-19 - 2017-10-20 
Place (in Japanese) (See Japanese page) 
Place (in English) Kashiwazaki energy hall, Niigata 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Recording Head, Spintronics, etc. 
Paper Information
Registration To IEICE-MRIS 
Conference Code 2017-10-MR-MMS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Performance improvement of iterative decoding by LLR modification using parity check information in SMR system 
Sub Title (in English)  
Keyword(1) SMR  
Keyword(2) LDPC  
Keyword(3) LLR  
Keyword(4) Party check information  
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1st Author's Name Madoka Nishikawa  
1st Author's Affiliation Ehime University (Ehime Univ.)
2nd Author's Name Yasuaki Nakamura  
2nd Author's Affiliation Ehime University (Ehime Univ.)
3rd Author's Name Hisashi Osawa  
3rd Author's Affiliation Ehime University (Ehime Univ.)
4th Author's Name Yoshihiro Okamoto  
4th Author's Affiliation Ehime University (Ehime Univ.)
5th Author's Name Yasushi Kanai  
5th Author's Affiliation Niigata Institute of Technology (Niigata Ins. of Tec.)
6th Author's Name Hiroaki Muraoka  
6th Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker
Date Time 2017-10-19 16:40:00 
Presentation Time 25 
Registration for IEICE-MRIS 
Paper #  
Volume (vol) ITE-41 
Number (no)  
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#Pages ITE- 
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