Correlation parameter estimation for LDPC-based Slepian-Wolf coding

Authors:
Yong Fang;Jechang Jeong
Affiliations:
Lab. of ICSP, Dep. of Electronics and Communications Engineering, Hanyang University, Seoul, Korea;Lab. of ICSP, Dep. of Electronics and Communications Engineering, Hanyang University, Seoul, Korea
Venue:
IEEE Communications Letters
Year:
2009

Citing 1
Cited 3

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Abstract

Currently, many practical SWC systems are implemented using the low-density parity-check (LDPC) codes in which the virtual correlation channel between source and side information is modeled as a binary symmetric channel (BSC) characterized by the crossover probability. This paper is contributed to the estimation of crossover probability through the probability mass function (PMF) of the magnitudes of log-likelihood ratio (LLR) messages. Simulation results are given to verify our proposed method.