Simulation methodologies for determining statistics of short-term interference between co-frequency, codirectional non-geostationary-satellite orbit fixed-satellite service systems in circular orbits and other non-geostationary fixed-satellite service sys
The ITU Radiocommunication Assembly considering: a) that emissions from the earth stations as well as from the space station of a satellite network (GSO FSS; non-GSO FSS; non-GSO mobile-satellite service (MSS) feeder links) in the FSS may result in interference to another such network when both networks operate in the same bands; b) that it is desirable to have a common methodology of simulation for assessing interference between systems that have co-frequency, codirectional feeder links when one of the systems is non-GSO; c) that it is possible to make some simplifying assumptions for these systems; d) that the simplifications in considering c) should not adversely affect the output results; e) that it would be desirable to have a common set of input parameters for each of the two communication systems; f) that it is necessary for the methodology to consider the type of fade compensation to counteract signal fading such as adaptive power control; g) that the methodology should have the ability to accurately calculate the time dependence of a single interference event in order to more accurately assess the impact on the interfered system; h) that the vast majority of the non-GSO FSS systems are in circular orbits; j) that information on the numbers and precise locations of earth stations is usually unavailable from ITU sources.