一种MIMO收发天线联合选择算法

在MIMO系统中天线选择可以增加系统容量,并能有效地降低MIMO系统的复杂度和射频电路成本。仿真实验表明天线在发送接收两端不同的分配方式影响信道容量,发现了一种信道容量角度的最佳天线分配方式。针对收发天线选择的需求,设计了一种可获得较大信道容量的简单算法。该算法没有矩阵运算,计算复杂度低。仿真实验表明该算法和最优算法非常贴近,优于只有接收天线选择时的最优算法。

Combined Antenna Selection Algorithm in MIMO System

Antenna selection increases channel capacity in MIMO system, also effectively decreases the system complexity and the Radio frequency circuit cost. Simulation experiments show that various antenna assignments between receiving and transmitting impact on the capacity of channel, so an optimal assignment was found from the point of channel capacity. In term of the requirement of antenna combined selection, a simple combined algorithm obtaining better channel capacity was proposed, which has low complexity without matrix operation. By Simulation analysis, the new algorithm is close to the optimal one and better than the optimal algorithm of receiving antenna selection.