相关信道下多模式天线选择算法的研究

Multi-mode Antenna Selection under Correlated Channel

分析了相关信道情况下,角度扩散对信道增益及有效自由度的影响,提出了基于有效自由度的多模式天线选择算法,该算法不仅可以根据信道相关情况动态选择天线数目,而且可以基于信道条件数动态确定天线子阵。仿真实验表明,采用该天线选择算法后香农信道容量与使用全部天线时的信道容量相比,损失很小,而系统复杂度降低。

It is analyzed for the effects of spread angle on channel gain and effective degree of freedom (EDOF) under correlated channel. A multi-mode antenna selection algorithm based EDOF is presented, which can determine the number of antennas and the optimal subset dynamically according to the condition number of channel. The simulation results show that the proposed method can achieve similar capacity to the system using all available antennas while the complexity of system simplified.