一种可变数目接收天线的MIMO选择算法研究

A Research on Variable Numberof Receive Antenna Selection Algorithm in MIMO System

MIMO技术能在不增加带宽的情况下通过提供分集增益及空间复用极大提高系统容量和频谱利用率。对已有的经典最优天线选择算法和递增递减算法分别进行了介绍,并对其优缺点以及适用范围进行了分析。最后,基于递增和递减算法提出了一种融合算法。该算法减少了计算复杂度,仿真表明系统容量没有很大缺失。并且是在接收端可变天线数目的情况下可有好的应用前景。

The MIMO technology can provide diversity gain and spatial multiplexing with greatly improvement in system capacity and spectrum utilization rate without increasing the bandwidth. The classical optimal antenna selection algorithm, the incremental and the decremental algorithm is introduced in this paper, and their advantages, disadvantages and applicable scope are also analyzed. At last, a fusion algorithm based on the incremental and decremental algorithm is proposed. This algorithm can reduce the computational complexity whilesimulation shows that the system capacity has no great loss. it has a good application prospect on the variable number of receiving antennas.