A two stage belief-propagation(TSBP)decoding algorithm was developed based on trapping set state(TSS)detection to reduce the error floor of low-density parity-check(LDPC)codes.

The LDPC advanced by Gallager has standard Tanner figure structure,and the advantage of the performance can be materialized after the length of the codes become longer.

In this paper, it is introduced that the hardware implementation and resource utilization of LDPC encoder based on Shift Register Adder Accumul(SRAA) structure in Digital Terrestrial Multimedia Broadcasting(DTMB) transmitter.

This paper introduces a design method of LDPC encoder based on 802.

On construction of LDPC codes based on data puncturing hybrid ARQ;

The construction methods of LDPC codes with its Belief Propagation(BP) decoding algorithm are briefly introduced.

In this paper, the basic construction method of LDPC codes is proposed, including an algebraic construction method for regular LDPC with long grith.

Study and Design of Low-Density Parity-Check Codes;

Low-density parity-check codes (LDPC) are a class of capacity approaching channel codes based on graphs with low-complexity iterative decoding algorithm and near Shannon limit performance, whose performance is better than Turbo codes with long code length.

Computation of the minimum distance of low-density parity-check codes;