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Multibeam high throughput satellite (MB-HTS) systems will play a key role indelivering broadband services to a large number of users with diverse Qualityof Service (QoS) requirements. This paper focuses on MB-HTS where the samespectrum is re-used by all user links and, in particular, we propose a noveluser scheduling design capable to provide guarantees in terms of individual QoSrequirements while maximizing the system throughput. This is achieved byprecoding to mitigate mutual interference. The combinatorial optimizationstructure requires an extremely high cost to obtain the global optimum evenwith a reduced number of users. We, therefore, propose a heuristic algorithmyielding a good local solution and tolerable computational complexity,applicable for large-scale networks. Numerical results demonstrate theeffectiveness of our proposed algorithm on scheduling many users with bettersum throughput than the other benchmarks. Besides, the QoS requirements for allscheduled users are guaranteed.

User Scheduling for Precoded Satellite Systems with Individual Quality of Service Constraints