ML detection in MIMO communication systems in the presence of channel estimation error

The performance of symbol detection in multiple-input multiple-output (MIMO) communication systems may considerably be degraded in the case of imperfect channel state information (ICSI). This paper addresses the problem of MIMO detection considering ICSI. We propose a detector which is robust against ICSI and in addition, two implementation methods are presented for the detector. Computer simulations are utilized to illustrate the performance of the proposed detectors in the colored environment.