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A modified low-density parity-check decoder for holographic data storage system

Authors
Chung, BiwoongYoon, PilsangKim, HaiksunPark, JooyounPark, JongyongHwang, Euiseok
Issue Date
Jun-2007
Publisher
IOP Publishing Ltd
Keywords
holographic data storage; low-density parity-check code; LLR BP algorithm; pixel misalignment; page format
Citation
Japanese Journal of Applied Physics, v.46, no.6B, pp 3812 - 3815
Pages
4
Indexed
SCIE
SCOPUS
Journal Title
Japanese Journal of Applied Physics
Volume
46
Number
6B
Start Page
3812
End Page
3815
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/43676
DOI
10.1143/JJAP.46.3812
ISSN
0021-4922
1347-4065
Abstract
A modified low-density parity-check decoding scheme for holographic data storage has been developed and evaluated. It compensates the negative effect from neighboring pixels during the iterative decoding process, which improves the overall error-correction performance when pixels are misaligned. A simulation shows that the proposed scheme outperforms a conventional log-likelihood-ratio (LLR) belief-propagation (BP) algorithm.
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