说明：The program constructs girth-twelve column-weight QC-LPDC codes. The rate can be changed by changing k(row-weight)， size is changed by varying m(sub-m...

qc-ldpc-matrix sub_m QC LPDC-rate ldpc-codes

说明：lpdc的解码可以在不编码的情况下完成。对于任何大H矩阵的译码器的性能测试，只有零码字就足够了