Antenna subset selection for MIMO channels with mutual coupling

In this work, we propose antenna selection schemes for a point-to-point multiantenna channel. The schemes select subsets of either transmit and/or receive antennas to activate to increase ergodic capacity. The channel model considered includes spatial correlation and mutual coupling among adjacent antennas, which can have significant impact on the channel performance. Our proposed schemes are shown to perform close to the optimal exhaustive search with less computational complexity.