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

fYear

2011

fDate

9-13 May 2011

Firstpage

307

Lastpage

313

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/WIOPT.2011.5930032

Filename

5930032