Benchmark of MEO Multibeam Satellite Adaptive Antenna and Payload Architectures for Broadband Systems

Florian Vidal, Hervé Legay, George Goussetis, Thomas Ströber, Jean-Didier Gayrard

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In the context of a competitive 5G environment, satellite systems must be able to provide cost-effective solutions to complement terrestrial networks. In a preliminary paper, the achievable capacities of diverse LEO satellite payloads were computed as a function of a parameter characterising the non-uniformity of the users distribution in the satellite field of view. As the non-uniformity parameter increases, the capacities of the various payloads benchmarked decrease because of inter-beam interference and shortage of frequency resource. A way to mitigate this capacity loss is to use flexible payloads with adaptive capabilities such as beam steering or flexible resource allocation. This paper proposes to extend the study to MEO payload and antenna architectures and benchmark them with respect to the capacity they can achieve and the power they require. A Circular Direct Radiating Array with Digital Beam Forming, a Sparse Direct Radiating Array with Digital Beam Forming as well as an architecture implementing Hybrid Beam Forming are analysed in terms of effective capacity achieved on different scenarios of users distributions with varying non-uniformities. The application of these results on a realistic scenario of user distribution concludes on the most promising payload architecture.

Original languageEnglish
Title of host publication2020 10th Advanced Satellite Multimedia Systems Conference and the 16th Signal Processing for Space Communications Workshop (ASMS/SPSC)
PublisherIEEE
ISBN (Electronic)9781728157948
DOIs
Publication statusPublished - 1 Dec 2020
Event10th Advanced Satellite Multimedia Systems Conference and the 16th Signal Processing for Space Communications Workshop 2020 - Graz, Austria
Duration: 20 Oct 202021 Oct 2020

Publication series

NameASMS/SPSC
ISSN (Electronic)2326-5949

Conference

Conference10th Advanced Satellite Multimedia Systems Conference and the 16th Signal Processing for Space Communications Workshop 2020
Abbreviated titleASMS/SPSC 2020
CountryAustria
CityGraz
Period20/10/2021/10/20

Keywords

  • digital beam forming
  • direct radiating array
  • hybrid beam forming
  • MEO
  • payload
  • sparse array

ASJC Scopus subject areas

  • Signal Processing
  • Aerospace Engineering
  • Media Technology
  • Computer Networks and Communications
  • Hardware and Architecture

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