— Antenna selection combined with dual-polarized antennas offers an attractive alternative for realizing higher order multiple-input multiple-output (MIMO) configurations in compact, low-complexity devices. In this paper we analyze the performance of antenna selection for narrowband dual-polarized MIMO systems with linear minimum mean square error (MMSE) receivers. We theoretically analyze the impact of cross-polar discrimination on the achieved antenna selection gain for dualpolarized MIMO channels. We use channel measurement data collected at 2.4 GHz in a typical office environment to compare the performance of spatial and dual-polarized MIMO with respect to antenna selection. Our bit-error-rate (BER) results indicate that antenna selection with dual-polarized antennas can achieve significant performance gains for compact configurations with only a nominal increase in complexity.
Vikram R. Anreddy, Mary Ann Ingram