MIMO MRC Systems with and without Multiuser Diversity

In this paper, we consider the multiple-input multiple-output (MIMO) wireless systems employing maximal ratio combining (MRC) in the absence and presence of multiuser diversity. First, using the well-known moment generating function-based analysis approach, we derive the error performance of the MIMO MRC systems without multiuser diversity over spatially correlated fading channels. Second, we present the average capacity of MIMO MRC systems with multiuser diversity. Numerical results demonstrate the accuracy of our analytical expressions.