Methods and systems for encoding and decoding for LDPC codes
地域：
Shenzhen, Guangdong
摘要
Methods and devices are disclosed for encoding source words and decoding codewords with LDPC matrices. The Methods and devices use a LDPC matrix Hn of lifting factor Z. The LDPC matrix Hn comprises a plurality of submatrices, each submatrix having a size of Z×Z, and at least one submatrix has m1 diagonals of “1” m1 is an integer>=2.
說明書
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As well, in the example of the submatrix at row 3, column 9 of the base matrix 604, which has the value of “4”, as the corresponding entry at row 3, column 9 of the lifting matrix 602 has a value of “0”, applying the entry of the lifting matrix 602 with the corresponding submatrix of the base matrix 604 generates 4 submatrices as follows:
For the submatrices with the value of “?1” in the base matrix 604, the corresponding entries of the lifting matrix 602 also have the value of “?1”. Applying the one entry with the value of “?1” in the lifting matrix 602 to the corresponding submatrix in the base matrix 604 generates four null submatrices.
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