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Title Linear Programming Decoding of Binary Linear Codes for Symbol-Pair Read Channels (in Japanese)
Authors Shunsuke Horii 、Toshiyasu Matsushima 、Shigeichi Hirasawa
Released Year 2016
Format Journal
Category Others
Jounal Name IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Jounal Page vol.E99-A, No.12, pp.2170-2178
Published Year 2016
Published Month 12
Abstract
(English)
In this study, we develop a new algorithm for decoding binary linear codes for symbol-pair read channels. The symbol-pair read channel was recently introduced by Cassuto and Blaum to model channels with higher write resolutions than read resolutions. The proposed decoding algorithm is based on linear programming (LP). For LDPC codes, the proposed algorithm runs in time polynomial in the codeword length. It is proved that the proposed LP decoder has the maximum-likelihood (ML) certificate property, i.e., the output of the decoder is guaranteed to be the ML codeword when it is integral. We also introduce the fractional pair distance dfp of the code, which is a lower bound on the minimum pair distance. It is proved that the proposed LP decoder corrects up to $\left\lceil dfp/2\right\rceil -1$ errors.
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