相关信道多天线系统中基于Hadamard变换的分解选择策略

对于多输入多输出系统，指出了选择天线将节省费用较高的RF链路，阐述了在相关信道多天线系统中天线选择技术．为降低传统天线选择系统复杂度，提出了分解选择策略：在选择前进行Hadamard变换，根据Hadamard变换的对称性，进而提出分解选择策略，Monte Carlo仿真分析，系统的容量变换很小，而复杂度大大降低．

Selection Scheme Based on Hadamard Transform for Multiple Antenna Systems in Correlated Channel

For a multiple input multiple output system, antenna selection saves the RF chains which are expensive. This paper addresses the antenna subset selection for multiple antenna systems in correlated channels. Due to high complexity of conventional selection scheme, we propose to embed Hadamard transform in the RF chains before the selection. Furthermore, a decomposition selection scheme is proposed based on the symmetry of Hadamard transform. According to the analysis of Monte Carlo simulation, the channel capacity changes slightly while the complexity of selection reduces dramatically.