Abstract:
A method for interlacing columns of different weights is proposed for a parity-check matrix H (Figure 2) that results in good performing LDPC codes shortened or unshortened. Matrix H comprises a section H 1 and a section H 2 , and wherein H 1 has a plurality of different column weights and comprises a plurality of sub-matrices where columns of at least one weight are substantially interlaced between the sub-matrices.
Abstract:
A deterministic structure for controlled distribution of weight-2 columns is proposed that reduces the occurrence of undetected frame errors and significantly enhances the code performance in comparison to a randomly-constructed parity-check matrix.
Abstract:
A method for interlacing columns of different weights is proposed for a parity-check matrix H (Figure 2) that results in good performing LDPC codes shortened or unshortened. Matrix H comprises a section H1 and a section H2, and wherein H1 has a plurality of different column weights and comprises a plurality of sub-matrices where columns of at least one weight are substantially interlaced between the sub-matrices.
Abstract:
A method for interlacing columns of different weights is proposed for a pari ty- check matrix H (Figure 2) that results in good performing LDPC codes shorten ed or unshortened. Matrix H comprises a section H1 and a section H2, and wherei n H1 has a plurality of different column weights and comprises a plurality of sub-matrices where columns of at least one weight are substantially interlac ed between the sub-matrices.
Abstract:
The present invention encompasses a method for determining values for parity check bits (p1, . . . , pm) based on a current symbol set (s1, . . . , sk). The method comprises the steps of receiving the current symbol set (s1, . . . , sk) and using a transformation of a matrix to determine the parity check bits. The first N2 columns of the matrix is defined that for column i, 1
Abstract:
A method for interlacing columns of different weights is proposed for a pari ty- check matrix H (Figure 2) that results in good performing LDPC codes shorten ed or unshortened. Matrix H comprises a section H1 and a section H2, and wherei n H1 has a plurality of different column weights and comprises a plurality of sub-matrices where columns of at least one weight are substantially interlac ed between the sub-matrices.