Level crossing rates and average outage durations of SINR with multiple co-channel interferers

Knowledge of the level crossing rates (LCR) and average outage durations (AOD) of the received signal-to-interference-plus-noise ratio (SINR) is very useful in designing and analyzing the communication system performance in a cellular environment with co-channel interference (CCI). In this paper, we study the analytical LCR and the AOD of the received SINR on Rayleigh fading channels with CCI. A closed-form expression for the LCR and the AOD is obtained for the general case of multiple co-channel interferers, traveling at different speeds, with unequal powers and with additive white Gaussian noise. We also specialize the derived results to the case of both interference-limited and noise-limited scenarios.