Performance analysis of detection schemes in MIMO spatially correlated channels

Abstract

The promise of substantial capacity increase by exploiting spatial diversity has made MIMO systems a new frontier in wireless communication research, but this performance gain is theoretical and does not take real world impairments like channel correlation into account. A lot of work has been done on MIMO detectors. However performance analysis in spatially correlated channels in real world scenarios is lacking. In this paper, we investigate the effects of channel correlation on the performance of existing MIMO detectors like linear detectors (ZF), non-linear detectors (V-BLAST) and exact decoders (Sphere Decoders).