WLC44-2: Performance of Dual Selection and Switch-and-Stay Combining Diversity Receivers over Weibull Fading with Co-channel Interference

In this paper, we evaluate the performance of two dual-branch diversity techniques operating over the Weibull fading channel in the presence of a dominant co-channel interferer with a minimum desired signal power constraint. These two diversity schemes are selection combining (SC) and switch-and- stay combining (SSC). We derive expressions for the outage probability in both cases, which are very simple to calculate numerically and reduce to closed-form ones in many special cases. Also, our expressions reduce to previously published well-known ones for the Rayleigh fading channel as a special case. We present a set of numerical results which show the effect of fading severity of both the desired signal and the interferer on the performance.