Low-density parity-check (LDPC) codes are a class of linear block LDPC codes. The name comes from the characteristic of their parity-check matrix which contains only a few 1’s in comparison to the amount of 0’s. Their main advantage is that the

1962年Gallager提出LDPC的博士论文，堪称经典-1962 Gallager LDPC proposed doctoral dissertation, a classic

construction a LDPC by GALLAGER