A Jointly Probabilistic Approach of Performance Analyses for Cooperative Relaying Links

A jointly probabilistic approach to formulate the performance analyses of the outage probability and the average bit-error-rate (BER) is presented with the max-min relay selection scenario. The relay hop is modeled as a closed-form probability density function (PDF) of the composite Rayleigh plus log-normal fading variables with a conditioned relay power constraint. Numerical analyses with dual-hop multi-relay link demonstrate that our probabilistic approach has promised accuracy, in comparison with the exact solution (integral form), leading to an effective analysis framework for more generalized fading environments, including out-door composite fading and marco-cell relaying system applications. Thus, this probabilistic approach effectively simplifies the performance analysis in terms of the shadowing effect and diversity order over cooperative multi-relay links.

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