Performance Analysis of LDPC on Rician Fading Channels

Abstract

This paper analyzes and simulates the performance of irregular low-density parity check (LDPC) codes on Rician fading channels. The authors also modified the brief propagation decoding algorithm, proved the symmetry and showed the stability conditions of the channels, and calculated the Shannon limits on Rician channels in this paper. By using Visual C++ programming to simulate the performance, the result indicates that when code length N = 3,072 and code rate R = 1/3, the difference with the Shannon limit is about 2 dB. Therefore, the performance of LDPC is also very effective on all kinds of channels, including the Rician kind.