Symbol Error Probability of High Spectral Efficiency MIMO Systems", 36-th Conf. on Infomation Science and Systems (CISS 2002)

In this paper we investigate the performance in terms of symbol error probability (SEP) of multiple-input-multiple-output (MIMO) systems in a flat Rayleigh fading environment with coherent detection of M-PSK signals. In particular, we focus on high spectral efficiency MIMO systems where, after serial to parallel conversion, several symbols are simultaneously transmitted by using an antenna array, thereby increasing the spectral efficiency. The reception is based on linear minimum mean square error (MMSE) combining, eventually followed by successive interference cancellation. Here, we first derive an approximate expression for the SEP for an arbitrary number of transmit and receive antennas; comparison with simulation shows that this approximation is good. Simulation results confirm the validity of the analitycal methodology.