任意空间阵列多极化 MIMO 信道模型

摘要

The paper combines the correlation of arbitrary spatial position antenna with the diversity of multi -polarization , and proposes a multi-polarized MIMO channel model which consists of arbitrary spatial array .Based on the twod-imensional (2D) uni-form linear arrays, some improvement and continuation are made , the expressions of correlation coefficient for the arbitrary spatial position antenna are derived , and the correlation is analyzed and compared with the one of three-dimensional(3D) model.Besides, the channel models of polarization diversity for 2D and 3D are given, the influence of antenna ’s tilt angle on the channel capacity is analyzed, and the channel capacities of 2D and 3D polarization models are compared .The simulation results prove the correctness and effectiveness of the model .According to the communication environment , this model can select the corresponding space dimen-sion and polarization dimension flexibly .%将任意空间位置天线的相关性与多极化分集相结合，提出一种任意空间阵列多极化多输入多输出信道模型。在二维均匀线阵的基础上进行改进和拓展，推导出任意空间位置天线的相关系数表达式，并与三维空间模型的相关性进行对比分析。同时，给出二维和三维极化分集的信道模型，分析天线倾斜角度对其信道容量的影响，并对比二者的容量。仿真结果证明了模型的正确性和有效性。模型可根据通信环境选取相应的空间维度和极化维度，建模灵活。