Performance analysis of selective decode and forward protocol with partner selection

Authors:
S. Muthukumar;V. Nagarajan
Affiliations:
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
Venue:
International Journal of Mobile Communications
Year:
2014

Citing 13
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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.