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Adaptive beamforming for large arrays in satellite communications systems with dispersed coverage

Montesinos, Julien and Besson, Olivier and Larue de Tournemine, Cécile Adaptive beamforming for large arrays in satellite communications systems with dispersed coverage. (2011) IET Communications, vol. 5 (n° 3). pp. 350-361. ISSN 1751-8628

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Official URL: http://dx.doi.org/10.1049/iet-com.2009.0721

Abstract

Conventional multibeam satellite communications systems ensure coverage of wide areas through multiple fixed beams where all users inside a beam share the same bandwidth. We consider a new and more flexible system where each user is assigned his own beam, and the users can be very geographically dispersed. This is achieved through the use of a large direct radiating array (DRA) coupled with adaptive beamforming so as to reject interferences and to provide a maximal gain to the user of interest. New fast-converging adaptive beamforming algorithms are presented, which allow to obtain good signal to interference and noise ratio (SINR) with a number of snapshots much lower than the number of antennas in the array. These beamformers are evaluated on reference scenarios.

Item Type:Article
Additional Information:Thanks to IET eidtor. The definitive version is available http://www.ietdl.org The original PDF of the article can be found at IET Communications website : http://www.ietdl.org/IET-COM
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National des Etudes Spatiales - CNES
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Délégation Générale pour l'Armement - DGA (FRANCE)
Université de Toulouse > Ecole Nationale de l'Aviation Civile - ENAC
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Other partners > Rockwell Collins (FRANCE)
Other partners > Thales (FRANCE)
Other partners > Telecom ParisTech (FRANCE)
Other partners > Direction Générale de l’Aviation Civile - DGAC (FRANCE)
Laboratory name:
Département d'Electronique, Optronique et Signal - DEOS (Toulouse, France) - Signal, Communication, Antenne et Navigation - SCAN
Statistics:download
Deposited By:Olivier Besson

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