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针对信道相关严重影响空间复用系统性能和容量的问题,研究发射天线数与容量和符号向量错误概率(VSER)的关系。并通过仿真实验从容量和VSER两方面研究天线选择的必要性。结果表明:在发射和接收天线数均为4,发射天线间距为2倍波长,发射角度扩展为2°时,合理的天线选择不但可以降低系统成本,还可以提高系统容量。
Aiming at the problem that the channel correlation severely affects the performance and capacity of the spatial multiplexing system, the relationship between the number of transmitting antennas and the capacity and the symbol error probability (VSER) of the system is studied. And through the simulation experiment from the capacity and the VSER both the necessity of antenna selection. The results show that the reasonable antenna selection can not only reduce the system cost but also increase the system capacity when the number of transmitting and receiving antennas is 4, the transmitting antenna spacing is 2 times the wavelength, and the transmitting angle is extended to 2 °.