On Designing Good LDPC Codes for Markov Channels

  title={On Designing Good LDPC Codes for Markov Channels},
  author={Andrew W. Eckford and Frank R. Kschischang and Subbarayan Pasupathy},
  journal={IEEE Transactions on Information Theory},
This paper presents a reduced-complexity approximate density evolution (DE) scheme for low-density parity-check (LDPC) codes in channels with memory in the form of a hidden Markov chain. This approximation is used to design degree sequences representing some of the best known LDPC code ensembles for the Gilbert-Elliott channel, and example optimizations are also given for other Markov channels. The problem of approximating the channel estimation is addressed by obtaining a specially constructed… CONTINUE READING
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