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In this paper, the authors develop a unified approach to the asymptotic performance analysis of symbol error rates for two-hop cooperative non-regenerative multi-relay networks over a myriad of stochastic channel models. Their proposed Moment Generating Function (MGF) based analytical framework is also sufficiently general to encapsulate all types of coherent, differentially-coherent and non-coherent digital modulation schemes. In addition to simplifying the computation complexity of Average Symbol Error Rate (ASER) for Cooperative Amplify-and-Forward (CAF) diversity systems treated in this paper, they also provide an accurate approximation for the desired ASER in a number of fading environments that heretofore, had resisted a simple solution.
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