Optimal Antenna Selection Designs for Coupled MIMO Systems

We consider the impact of antenna mutual coupling on receive antenna selection systems. Prior workon selection with mutual coupling has not considered the effects of the inactive (i.e., unselected) antennaterminations and spatial noise correlation. In this work, we show that the presence of inactive antennascan profoundly alter system performance when the antennas are strongly coupled. We also propose a newantenna selection technique that seeks to exploit coupling to improve performance. Simulations suggestthat the new technique can significantly outperform traditional selection when coupling is present