A unified approach to optimization of LDPC codes for various communication scenarios


A unified approach to construct and optimize codes determined by their sparse parity-check matrices is presented. Parity-check matrices of quasi-cyclic (QC) LDPC block codes are obtained by replacing the nonzero elements of a base (seed) matrix by circulants. Replacing the nonzero elements either by companion matrices of elements from a finite field GF(2m… (More)
DOI: 10.1109/ISTC.2014.6955122


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