MIMO Channel Model on Spatial Correlation in Wireless Communication

摘要

This paper studies the effect of spatial correlation on the system capacity in realistic channels, accurate channel models are necessary. Although, several MIMO channel models have been proposed in the literature, most of them are based on the assumption that waves travel in the azimuth plane (i.e. two-dimensional (2-D) wave scattering), which may not be the situation in practice. This creates a motivation to develop a MIMO channel model that considers the 3-D wave scattering, and to study the effect spatial correlation on the behavior of MIMO channel capacity under different circumstances and scattered distribution functions.It has been observed that the angular energy spread and antenna spacing (radius) have a pronounced effect on the capacity of MIMO fading channel. As the angular spread decreases the spatial correlation increases and consequently the capacity degraded and vice versa. This paper provides analysis, evaluation and computer simulations in MATLAB.