Outage Probability of Cooperative Relay Networks in eta-µ, kappa-µ and Mixed Fading Channels

Outage performance of cooperative relay networks using opportunistic decode-and-forward (DF) relaying in η-μ, κ-μ and mixed η-μ and κ-μ fading channels is analyzed. In DF relaying, a relay is allowed to forward the message from source only if the message is correctly decoded. The destination node combines both the direct signals from the source and the indirect signals from the relays using maximal-ratio diversity combining technique. In our analysis, exact closed-form expressions for the outage probability are obtained in η-μ, κ-μ and mixed η-μ and κ-μ fading channels, respectively. Numerical examples are provided to show the effect of number of relays, transmission rate and fading parameters on the outage probability. Numerical results are verified with Monte Carlo simulations.