Link Adaptation Algorithms for Dual Polarization Mobile Satellite Systems

TL;DR

This paper investigates dual polarization in mobile satellite systems, demonstrating that adaptive MIMO and coding schemes can significantly enhance throughput, with potential gains up to 100% over single polarization systems.

Contribution

It introduces a link adaptation algorithm that dynamically selects MIMO and modulation schemes for dual polarization satellite links, optimizing throughput and error rates.

Findings

Up to 100% throughput improvement with dual polarization

Effective link adaptation algorithm using tunable margin

Significant performance gains over single polarization systems

Abstract

The use of dual polarization in mobile satellite systems is very promising as a means for increasing the transmission capacity. In this paper we study a system which uses simultaneously two orthogonal polarizations in order to communicate with the users. The application of MIMO signal processing techniques along with Adaptive Coding and Modulation in the forward link can provide remarkable throughput gains up to 100 % when compared with the single polarization system. The gateway is allowed to vary the MIMO and Modulation and Coding Schemes for each frame. The selection is done by means of a link adaptation algorithm which uses a tunable margin to achieve a prede ned target Frame Error Rate.