Analysis and improvement of LDPC decoding algorithm in DTMB
Jin-liang Jiao · Video Engineering · 2008
A new LDPC decoding algorithm based on BP is present algorithm. The new algorithm uses Serial Schedule Message Passing and reduces the complexity of the Check-Node Update operation, not only improve convergence property but also reduces the decoding complexity. This paper simulates the performance of different algorithm of LDPC codes in DTMB, simulation results show that the new algorithm performs less than 0.1 dB worse than BP algorithm at the BER=3×10-6, and its average iteration number can be reduced to 50%.