ldpc_dec.m

速度很快的低密度奇偶校验码的Matlab仿真程序

function [y,success]=ldpc_dec(inf_L,VarNodeDegree,CheckNodeDegree,alpha,IterMax,Lmax,codetype)

% codetype 0: min 1--one-step 2 two-step 3 offset-1 4 offset-2 5 tmp(one-two)

switch codetype
    case 0
        [y,success]=ldpc_decoder_min(inf_L,VarNodeDegree,CheckNodeDegree,alpha,IterMax,Lmax);
    case 1
        [y,success]=ldpc_decoder_min_o(inf_L,VarNodeDegree,CheckNodeDegree,alpha,IterMax,Lmax);
    case 2
        [y,success]=ldpc_decoder_min_t(inf_L,VarNodeDegree,CheckNodeDegree,alpha,IterMax,Lmax);
    case 3
        [y,success]=ldpc_decoder_min_s_1(inf_L,VarNodeDegree,CheckNodeDegree,alpha,IterMax,Lmax);
    case 4
        [y,success]=ldpc_decoder_min_s_2(inf_L,VarNodeDegree,CheckNodeDegree,alpha,IterMax,Lmax);
    case 5
        [y,success]=ldpc_decoder_min_t_1(inf_L,VarNodeDegree,CheckNodeDegree,alpha,IterMax,Lmax);
    case 6
        [y,success]=ldpc_decoder_min_new(inf_L,VarNodeDegree,CheckNodeDegree,alpha,IterMax,Lmax);
    otherwise
        [y,success]=ldpc_decoder_spa(inf_L,VarNodeDegree,CheckNodeDegree,alpha,IterMax,Lmax);
end;