Co-channel interference in high-throughput multibeam satellite systems

The paper discusses co-channel interference as the main interference effect occurring in the user up- and downlink of a multi-beam satellite. Different cluster sizes for the beam pattern are considered, and an optimum cluster size with regard to co-channel interference is discussed in more detail. For the satellite spot beam antenna, a typical tapered antenna is considered. The investigation is based on Monte Carlo simulation of user positions within the beam pattern, resulting in CDFs of SNIR and capacity. Moreover, usage of dual polarisations and the influence of rain fading are investigated.