The end-to-end performance of a dual-hop amplify-and-forward relaying system is investigated over composite multipath-lognormal fading channels by using Mixture Gamma(MG)channel model.Novel exact closed-form expressions for the cumulative distribution function and the moment-generation function of the end-to-end signal-to-noise ratio are derived.Moreover, the average symbol error rate, outage probability and the diversity order are found based on the above new expressions, respectively.These expressions are more simple and accuracy than the ones obtained by using Generalized-K(KG)channel model.Finally, numerical and simulation results are shown to verify the accuracy of the analytical results.
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2014, Vol. 42 
