Low-density parity-check (LDPC) codes are an important family of linear codes which are introduced with a parity check matrix having small number of non-zero elements, relative to the total entries of the matrix. Theoretically, LDPC codes can achieve remarkable performance very close to the Shannon limit with iterative decoding. In recent years, it is proven that these codes have good error correction and detection performance in communications systems. Array LDPC codes are a special A well known sub
