Interference Mitigation for the Reverse-Link of Interactive Satellite Networks

This paper presents some of the results of a study aimed at investigating and optimizing possible Interference Mitigation techniques for wideband fixed-service satellite systems. In particular this paper discusses the performance improvements that can be achieved in the user-to-Hub link (Reverse-Link, RL) of a multibeam satellite system by using more advanced processing techniques than those implemented in today’s receivers. After illustrating the operational scenario taken as reference, the paper illustrates in particular two Interference Mitigation techniques (MMSE and MMSE-SIC) that are considered to be good candidates for the RL. After considering a possible channel estimation strategy, the paper continues on by presenting the obtained simulation results.