The performance of q -ary LDPC code is better than that of the binary LDPC code, so the study of q -ary LDPC code encoding and decoding and the research of joint design of q -ary LDPC code and high-level modulation are very meaningful work.

For the characteristics of DTMB which adopts multi-rate LDPC codes associated with multi-patterm of symbol-mapping,a LDPC encoder is designed using Verilog hard description language.

Design and simulations of LDPC codes on GF(q) based on PEG algorithm;

Performance Analysis of LDPC Decoding Algorithm;

Study and Development of LDPC Coding;

Analysis of LDPC Decoding Algorithm Based on Serial Schedule;