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Performance Evaluation of Reconfigurable MIMO Systems in Spatially Correlated Frequency-Selective Fading Channels

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3 Author(s)
Vakilian, V. ; Dept. of Electr. Eng., Ecole Polytech. de Montreal, Montreal, QC, Canada ; Frigon, J.-F. ; Roy, S.

In this paper, we study the performance of a reconfigurable multiple-input multiple-output (RE-MIMO) system in spatially correlated frequency- selective fading channels. In particular, we propose to use a RE-MIMO system to overcome the inter symbol interference (ISI) problem caused by multipath propagation. In the proposed system, we use a 3-dimensional coding scheme to obtain the same diversity order as in MIMO-OFDM systems over frequency-selective channels, and achieving better bit error rate performance by using directive reconfigurable antennas. To demonstrate the superiority of the proposed system, we compare the performance of the RE-MIMO with MIMO-OFDM system over frequency-selective channels. Simulation results show that the coded RE-MIMO system outperforms the coded MIMO-OFDM systems for small angular spread. However, for larger angular spread, the performance of the RE-MIMO system degrades due to much stronger contribution of undesired multipath components.

Published in:

Vehicular Technology Conference (VTC Fall), 2012 IEEE

Date of Conference:

3-6 Sept. 2012