Distributed Versus Co-Located Mimo Systems with Correlated Fading and Shadowing

Abstract

MIMO communications has been a highly active research area recently due to its remarkable capacity potential. The predicted capacity gain is nonetheless greatly limited in realistic propagation scenarios, especially when the number of antennas becomes large. This motivates us to investigate a generalized paradigm for multiple-antenna communications, called distributed MIMO, which has the potential to address many of the problems inherent in conventional co-located MIMO systems. In this paper, we demonstrate the advantages of distributed MIMO versus co-located MIMO in correlated fading and shadowing scenarios through asymptotic analysis.