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, 5 (3). 350-361. ISSN 1751-8628
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 726kB |
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 |
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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: | Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE) Other partners > Thales (FRANCE) Other partners > Laboratoire de recherche en télécommunications spatiales et aéronautiques - TéSA (FRANCE) |
Laboratory name: | Département d'Electronique, Optronique et Signal - DEOS (Toulouse, France) - Signal, Communication, Antenne et Navigation - SCAN Laboratoire de recherche en télécommunications spatiales et aéronautiques - TéSA (Toulouse, France) |
Funders: | DGA - Thales Alenia Space |
Statistics: | download |
Deposited On: | 15 Feb 2011 09:11 |
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