Title: Performance analysis of selective decode and forward protocol with partner selection

Authors: S. Muthukumar; V. Nagarajan

Addresses: Department of Electronics and Communication Engineering, Adhiparasakthi Engineering College, Melmaruvathur 603319, Tamil Nadu, India ' Department of Electronics and Communication Engineering, Adhiparasakthi Engineering College, Melmaruvathur 603319, Tamil Nadu, India

Abstract: Cooperative diversity is a technique that mitigates fading without additional cost, hardware and complexity. A cooperative diversity system having a source, multiple relays and a destination is considered. The end-to-end symbol error probability (SEP) of a full channel state information (CSI) selection combining scheme for cooperative communication, with selective decode and forward (S-DF) relaying for binary phase-shift keying (BPSK) symbol in a flat Rayleigh fading environment, is derived. Here, the effect of source-to-relay channel is included in the error analysis of cooperative diversity systems with selection combining. The threshold for S-DF is set with ratio factor α. On the basis of the optimised α value, the partner selection is performed. This scheme offers better SEP when compared with conventional selection combining scheme.

Keywords: BPSK; binary phase-shift keying; cooperative communication; cooperative diversity; partner selection; selection combining; selective decode forward; symbol error probability; flat Rayleigh fading; source-to-relay channel.

DOI: 10.1504/IJMC.2014.059739

International Journal of Mobile Communications, 2014 Vol.12 No.2, pp.192 - 206

Received: 05 Nov 2012
Accepted: 23 Jul 2013
Published online: 10 Sep 2014 *

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