运动参数下的SCM信道相关性分析

MIMO technology is a key technique in IMT-Advanced system. It can increase the capacity of a system without expanding the frequency spectrum. However, the capacity is not stable, especially in case where mobile station(MS) moves around, since it is affected by the spatial correlation of multi-antenna. This paper simulates spatial correlation of SCM model in different parameter settings, as well as the performance of MIMO system in changing correlations. Simulations show that the spatial correlation of SCM corresponds with distance of antennas, velocity of MS and direction of antennas. The smaller the spatial correlation between antennas, the better the system performance.