Performance of wireless multihop communications systems with cooperative diversity over fading channels

Authors:
Theodoros A. Tsiftsis
Affiliations:
Wireless Communications Systems Group (WCSG), Department of Electrical & Computer Engineering, Aristotle University of Thessaloniki, 54 124 Thessaloniki, Greece
Venue:
International Journal of Communication Systems
Year:
2008

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Abstract

We present closed-form bounds for the performance of wireless multihop communications systems with cooperative diversity over Nakagami-m fading channels. The end-to-end signal-to-noise ratio is formulated and upper bounded by using the inequality between harmonic and geometric means of positive random variables. Closed-form expression is derived for the moment-generating function and is used to obtain lower bounds for the average error probability. Numerical results are compared with computer simulations showing the tightness of the proposed bounds. Copyright © 2007 John Wiley & Sons, Ltd.