本文研究了在MIMO系统的接收端,采用部分干扰抵消群译码算法对接收端信号进行译码的算法,在保证码字获得满分集的同时,降低接收端的译码复杂度。通过将一个空时分组码中所包含的符号进行群组划分,对于不同的符号群组,在对接收信号经过线性滤波处理之后分别独立地进行译码操作,从而达到降低译码复杂度的目的。仿真结果显示,该算法相对于传统的最大似然译码算法,译码复杂度明显降低。 In this paper, we study the algorithm of decoding the receiver signal by partial interference cancellation group decoding algorithm at the receiving end of the MIMO system, and reduce the decoding complexity of the receiver while ensuring full diversity of the codeword. By grouping the symbols contained in a space-time block code, for different symbol groups, the received signals are separately subjected to the decoding operation after the linear filtering process, so as to reduce the decoding complexity . Simulation results show that compared with the traditional maximum likelihood decoding algorithm, the decoding complexity is significantly reduced.