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基于线性检测的空间复用(SM)系统提出了一种射频天线选择算法,该算法以最小化错误概率为目标,利用信道矩阵的奇异值分解(SVD)所得到的左奇异和右奇异矢量实现发端和收端的射频天线选择,且不需要改变系统原有的检测算法。该算法可以用于收发任一端或两端同时使用,不采用遍历搜索,与传统搜索算法相比实现复杂度低。仿真证明将该算法应用于链路任意一端相比与传统算法都可以获得更多的分集增益和阵列增益。
Based on the linear detection, a space-frequency multiplexing (SM) system is proposed to select a radio frequency antenna. The algorithm takes the minimization of the error probability as the target and uses the left singular and right singular vectors obtained from the singular value decomposition (SVD) of the channel matrix RF antenna selection at the beginning and the end, and does not need to change the original detection algorithm of the system. The algorithm can be used to send and receive at any one or both ends simultaneously, and does not use traversal search. Compared with the traditional search algorithm, the algorithm has low complexity. Simulation results show that the proposed algorithm can be applied to both ends of the link to obtain more diversity gain and array gain than traditional algorithms.