University of Hertfordshire

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By the same authors

Weakly-Constrained Codes for Suppression of Patterning Effects in Digital Communications

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Original languageEnglish
Pages (from-to)2845-2854
JournalIEEE Transactions on Communications
Publication statusPublished - Oct 2010


We propose weakly-constrained stream and block codes with tunable pattern-dependent statistics and demonstrate that the block code capacity at large block sizes is close to the the prediction obtained from a simple Markov model published earlier. We demonstrate the feasibility of the code by presenting original encoding and decoding algorithms with a complexity log-linear in the block size and with modest table memory requirements. We also show that when such codes are used for mitigation of patterning effects in optical fibre communications, a gain of about 0.5 dB is possible under realistic conditions, at the expense of small redundancy (≈10%).


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