一种基于相异度的接收天线选择算法

A receive antenna selection algorithm based on dissimilarity

对于多输入多输出系统天线选择算法而言,穷尽搜索算法能够达到最优的性能,但包含较多矩阵运算,计算复杂度较高。而传统基于相关度和相似度的天线选择算法虽具有较低计算量,但损失了较大的容量性能。针对这一问题,以容量性能为目标,提出了基于相异度的接收天线选择算法,分析了不同相异度下所提选择准则对系统性能的影响。与传统相关度和相似度天线选择算法相比,所提算法有效降低了计算复杂度,改善了系统的容量性能,仿真结果表明:所提算法具有较好的系统性能,适用于实时通信系统。

For antenna selection algorithm of multiple-input multiple-output（MIMO）systems,the exhaustive search algorithm can obtain optimal property,but require lots of matrix computation with high complexity.The traditional antenna selection algorithm based on correlation and similarity has lower computational complexity,but lost more capacity performance.For this problem,a receive antenna selection algorithm based on dissimilarity is proposed aimed at getting larger capacity.The paper analyzes the impact of selection criterion with different dissimilarity for the system.Compared with the traditional selection algorithm based on correlation and similarity antenna,the proposed algorithm can reduce the computational complexity efficiently,and improve the capacity performance.The results of simulation show that the proposed algorithm has better system performance,and is suitable for real time communication system.