关键词: 椭圆散射信道模型, 多输入多输出, 相关函数, 信道容量, 精确多普勒扩展法

Abstract: To study the transmission characteristics of the channel under isotropic and non-isotropic scattering environments, a geometric elliptical scattering model was established. Both the transmitter and receiver are adapted uniform linear array to research multiple-input multiple-output performance. First, assume that the angle of arrival (AOA) obey Von Mises density distribution. In the quantitative analysis of the relationship between AOA and angel of departure, the time auto correlation function, the spatial correlation function of the reference model are analyzed, so as the channel capacity. In addition, a parameter calculation method based exact doppler spread was proposed, and a simulation model was obtained based on a reference model. The statistics of the proposed model illustrates the influence of the characteristic of the channel model under the Von Mises distribution. Analysis and simulation show that the channel simulator and the reference model have almost the same time correlation function, and this model also extends the research of spatial statistical channel model.

Key words: elliptical scattering model, multiple-input multiple-output, correlation function, channel capacity, exact Doppler spread