Highly Accurate Approaches for the Interference Modeling in Coexisting Wireless Networks

In this letter, the problem of coexistence interference caused by multiple networks operating in the same band is considered. Specifically, two different methods to characterize the aggregate interference caused to a receiver when the interferers belong to different coexisting networks are presented. While the first method is inspired on the interference distribution in homogeneous Poisson point process (PPP) networks, the second method proposes a highly precise approximation based on the <inline-formula> <tex-math notation="LaTeX">$\alpha $ </tex-math></inline-formula>-<inline-formula> <tex-math notation="LaTeX">$\mu $ </tex-math></inline-formula> distribution. Both methods are described and their accuracies are assessed through simulations, showing that the adoption of the second approach can effectively increase the accuracy of the interference power distribution in coexisting scenarios.