Outage Probability of DF IDMA Networks with Best Relay Selection in Weibull Fading

A dual-hop decode-and-forward (DF) interleave-division multiple access (IDMA) system using best relay selection method in independent Weibull fading channels is addressed. An expression for cumulative distribution function (CDF) is derived by using approximate probability density function (PDF) of end-to-end signal to noise ratio (SNR). Then, the proposed CDF expression is employed to evaluate the outage probability of the considered network. The simulation results are demonstrated to verify the analytical results obtained by using the derived expression, especially at the values of medium and high SNR and to provide further insights.