Calculating the outage probability in a CDMA network with spatialPoisson traffic

摘要

In this paper, we provide a spatial Poisson point pattern model ofntraffic in a code division multiple access (CDMA) wireless network. Wenshow how the theory of Poisson processes can be applied to providenstatistical information about interference levels in the network. Innparticular, we calculate approximations and a bound on the outagenprobability at a designated cell site in the network, utilizingnhigh-order cumulants, which have very simple analytical forms and canneasily be computed once the mean measure of the spatial Poisson pointnpattern is known. We consider a Poisson-Gaussian approximation and annEdgeworth approximation in which the Gaussian distribution is twisted tonsatisfy the required cumulants, and we provide a Chernoff bound onnperformance that also utilizes the cumulant information. We show thatnthe theory can be applied to nonstationary, time nonhomogeneous systems.nWe provide a particular example of a M/M/∞, spatial queueing modelnof a CDMA wireless network