Influence of Signal and Interference Spatial Correlation on the MIMO Communication System's Channel Capacity

Abstract

Wide use of MIMO technology opens up some new possibilities for increasing the noise immunity of communication systems. The presence of multiple transmitter antennas and multiple receiver antennas allows for spatial coding and spatial decoding of signals together with spatial interference cancellation. The efficiency of transmit-receive spatial diversity is investigated as a function of the spatial correlation in the MIMO channel and interference correlation on the receiver site. It was found that the influence of the spatial correlation in the MIMO channel on the outage probability of the MIMO communication system is similar to the influence of the interference spatial correlation when the antennas' number is different.