Exposing pseudoweight layers in regular LDPC code ensembles
Mark F. Flanagan · 2009
A solution is presented for the asymptotic growth rate of the AWGN-pseudoweight distribution of regular low-density parity-check (LDPC) code ensembles for a selected graph cover degree M ¿1. The evaluation of the growth rate requires solution of a system of 2M +1 nonlinear equations in 2M +1 unknowns. Simulation results for the pseudoweight distribution of two regular LDPC code ensembles are presented for graph covers of low degree.