Statistical aspects in the evaluation of interference among satellite networks

The authors analyze the impact of using statistical models to characterize sidelobe earth station antenna gains, earth station locations, and frequency plans in interfering transponders. Results indicate that this impact is significant and, in some cases, over 20% of extra interference could be accepted if permissible levels are allowed to be exceeded with very small probability. The results indicate that the effects of statistically modeling Earth station locations and interfering transponder frequency plans should be investigated under more general conditions than those considered here. In particular, random Earth station location effects should be examined for more general geometric configurations, concerning the relative position and the format of coverage areas