Title :
Performance of a reconfigurable antenna configuration selection scheme in a MIMO-OFDM system with modulation rate adaptation
Author :
Gonzalez, David ; Kountouriotis, John ; Lach, Daniel ; Bertolazzi, Renan ; Das, Pujashree ; Dandekar, Kapil
Author_Institution :
Dept. of Electr. & Comput. Eng., Drexel Univ., Philadelphia, PA, USA
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.
Keywords :
MIMO communication; OFDM modulation; antennas; channel capacity; MIMO-OFDM system; adaptive configuration selection algorithm; antenna configuration selection algorithm; channel capacity measurement; indoor environment; line-of-sight; modulation rate adaptation; modulation rate adaptive scheme; nonreconfigurable antenna; pattern reconfigurable antenna; reconfigurable antenna configuration selection scheme; Adaptive arrays; Antenna measurements; Channel capacity; Modulation; Signal to noise ratio; Switches; Training;
Conference_Titel :
Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks (WiOpt), 2011 International Symposium on
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-61284-822-8
DOI :
10.1109/WIOPT.2011.5930032
