Design of LDPC Code Based on Q-Matrix
Luan Ying-zi · Computer Technology and Development · 2010
In this paper,the definition of Q matrix is introduced first,and the designation of LDPC codes based on Q matrix is proposed,which is based on QMatrix.In this method,the parity check matrix H is constructed by two matrixes:Hp and Hd,Hp is an upper triangular dual diagonal matrix,Hd is formed by Q matrix based on a certain principle which is the focus of this paper,a good construction principle of Hd is proposed,which improves the performances of LDPC codes.The encoder algorithm is easier to implement and it provides a good suggestion for the encoder of LDPC codes.