Performance Analysis of Dual-Hop Amplify-and-Forward Relaying over Non-identical Mixture Gamma Fading Channels
Weijun Cheng · International Conference on Control Engineering and Communication Technology · 2013
In this paper, we present the end-to-end performance of a dual-hop amplify-and-forward relaying system over independent non-identical composite Nakagami-lognormal (NL) fading channels by using Mixture Gamma (MG) distribution. Novel closed-form expressions for the probability density function and the moment-generation function of the end-to-end Signal-to-noise ratio are derived. Moreover, the average symbol error rate, the diversity order and the average capacity are found based on the above new expressions, respectively. These expressions are more simple and accuracy than the previous ones obtained by using generalized-K (KG) distribution. Finally, numerical and simulation results are shown to verify the accuracy of the analytical results.