Title: Performance comparison of dual SC systems using different decision algorithms in the presence of interference

Authors: Aleksandra Panajotovic; Nikola Sekulovic; Mihajlo Stefanovic; Dragan Draca

Addresses: Faculty of Electronic Engineering, University of Nis, Aleksandra Medvedeva 14, 18000 Nis, Serbia ' School of Higher Technical Professional Education, Aleksandra Medvedeva 20, 18000 Nis, Serbia ' Faculty of Electronic Engineering, University of Nis, Aleksandra Medvedeva 14, 18000 Nis, Serbia ' Faculty of Electronic Engineering, University of Nis, Aleksandra Medvedeva 14, 18000 Nis, Serbia

Abstract: In this brief paper, we investigate selection combining (SC) technique, as one of the most efficient for upgrading transmission reliability and increasing channel capacity. Namely, dual SC diversity system operating over correlated Rician fading channels in the presence of Rayleigh cochannel interference (CCI) is studied. Desired signal power algorithm is explored by virtue of average bit error probability (ABEP), outage probability and average signal-to-interference ratio (SIR) at the output of the receiver. Presented numerical results aims to show effects of fading severity and level of correlation on considered performance metrics. Moreover, they are used for performance comparison of dual SC receivers applying two different decision algorithms, desired and SIR power algorithm, presenting the most significant contribution of this paper.

Keywords: decision algorithms; co-channel interference; CCI; correlated fading; Rayleigh fading; Rician fading; SC diversity system; selection combining; transmission reliability; channel capacity; average bit error probability; ABEP; outage probability; signal-to-interference ratio; average SIR.

DOI: 10.1504/IJRIS.2013.058194

International Journal of Reasoning-based Intelligent Systems, 2013 Vol.5 No.3, pp.215 - 221

Published online: 09 Dec 2013 *

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