In this paper,we derive a modified probabilistic data association(PDA)algorithm for MIMO channels,and present a partial-PDA + LDPC joint detection algorithm,which has a low computational complexity than the PDA+LDPC joint detection algorithm.

• 本文改进了概率数据辅助(probabilistic data association,PDA)算法,将其应用于MIMO(multiple-input multi- ple-output)系统中,并提出了一种partial-PDA+LDPC联合检测算法,比PDA+LDPC联合检测算法的计算复杂度更低。