Linear Precoding performance analysis in a Broadband satellite system with a 2-color dual-polarization reuse scheme

Abstract

The potential of Joint Multiuser Processing in multi-beam satellite systems is assessed in this paper and proved to be a potential attractive alternative to current systems. The present contribution aims at investigating linear precoding techniques over an accurate multi-beam architecture modeling and system characterization. Power and precoder design problems are approached through wellknown linear precoding techniques such as Zero Forcing (ZF) andRegularized-ZF. A dual-polarization 2-color reutilization scheme is considered in combination with precoding techniques. Results show a total throughput improvement of +22% achieved by ZF and +38% considering R-ZF, with respect to a conventional 4-color reuse scheme scenario.

Link adaptation and SINR errors in practical multicast multibeam satellite systems with linear precoding

“…Several works 2–6 propose the application of linear precoding to the forward link of DVB‐S2‐based systems. Performance analysis and practical issues are addressed, among others, multiplexing of several users per frame, the importance of users scheduling in the final system capacity, the outdated CSIT (Channel State Information at the Transmitter), or CSI estimation errors.…”