Performance analysis of wireless multihop diversity systems

Authors:
Diomidis S. Michalopoulos;Theodoros A. Tsiftsis
Affiliations:
Wireless Communications Systems Group (WCSG), Electrical and Computer Engineering Department, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece;Wireless Communications Systems Group (WCSG), Electrical and Computer Engineering Department, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
Venue:
International Journal of Communication Systems
Year:
2008

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Outage probability and channel capacity for the Nth best relay selection AF relaying over INID Rayleigh fading channels

International Journal of Communication Systems

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Abstract

We study the performance of multihop diversity systems with non-regenerative relays over independent and non-identical Rayleigh fading channels. The analysis is based on the evaluation of the instantaneous end-to-end signal-to-noise ratio (SNR), depending on the type of the relay and the diversity scheme used. A closed-form expression is derived for the average end-to-end SNR, when fixed-gain relays and a maximal ratio combiner are used; also, an analytical expression formula for the average symbol-error rate (ASER) for the above case is presented. The results show that, as expected, multihop diversity systems outperform conventional telecommunication systems in terms of ASER when the same amount of energy is assumed to be consumed in both cases. Copyright © 2008 John Wiley & Sons, Ltd.