Performance of a reconfigurable antenna configuration selection scheme in a MIMO-OFDM system with modulation rate adaptation

Abstract

In this paper we investigate the performance of an antenna configuration selection algorithm for a pattern recon-figurable antenna in a 2 × 2 MIMO-OFDM system. Channel capacity measurements were performed over a single link in both Line-of-sight (LOS) and Non-LOS (NLOS) indoor environments. From these measurements, an adaptive configuration selection algorithm was developed and the scheme's performance gains relative to a non-reconfigurable antenna were quantified. Finally, the configuration selection algorithm was also paired with a modulation rate adaptive scheme in order to exploit the improved channel capacity available with reconfigurable antennas.