LDPC码分层译码算法在BICM-ID系统下的应用

In this paper, two popular technologies in telecommunication field are introduced, the Layered decoding algorithm for LDPC and BICM-ID(Bit InterIeaved Coded ModuIation with IterativeIy Decoding) system. It is usually do that compelet the Layered decoding algorithm in BICM system or complete other decoding algorithm(not Layered decoding altorithm) in BICM-ID system. In this paper, the Layered decoding algorithm is completed in BICM-ID system, according to the simulation results, Layered decoding algorithm can reduce the number of demodulationg iteration about forty percent, in the case that the number of Layered decoding iteration is same to the number of MS decoding iteration, and the performance is similar.