Exploració per autor "Joroughi, Vahid"

Ara es mostren els items 1-8 de 8

    • Design of a hybrid ground/space architecture based on individual on-board feed power optimization for the forward link of a multi-beam broadband satellite system 

      Joroughi, Vahid; Vazquez, Miguel Angel; Devillers, Bertrand; Pérez Neira, Ana Isabel (American Institute of Aeronautics and Astronautics (AIAA), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The multi-beam broadband satellite systems have been deployed to provide broadband services to their under-served geo-graphical area. In one hand, with assuming full frequency reuse among beams the resulting interference ...

    • Design of an hybrid ground-space architecture based on individual on-board antenna power optimization for the forward link of a multi-beam broadband satellite system 

      Joroughi, Vahid; Vazquez, Miguel Angel; Devillers, Bertrand; Pérez Neira, Ana Isabel (2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The multi-beam broadband satellite systems have been deployed to provide broadband services to their under-served geo-graphical area. In one hand, with assuming full frequency reuse among beams the resulting interference ...

    • Design of an on-board beam generation process for the forward link of a multibeam broadband satellite system 

      Joroughi, Vahid; Devillers, Bertrand; Vazquez, Miguel Angel; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The multi-beam broadband satellite systems have been deployed to provide broadband services to their under-served geo-graphical area. In one hand, with assuming full frequency reuse among beams the resulting interference ...

    • Generalized multicast multibeam precoding for satellite communications 

      Joroughi, Vahid; Vázquez, Miguel Ángel; Pérez Neira, Ana Isabel (2017-02-01)
      Article
      Accés obert
      This paper deals with the problem of precoding in multibeam satellite systems. In contrast to general multiuser multiple-input-multiple-output cellular schemes, multibeam satellite architectures suffer from different ...

    • Multiple gateway precoding with per feed power constraints for multibeam satellite systems 

      Joroughi, Vahid; Vazquez, Miguel Angel; Pérez Neira, Ana Isabel (VDE Conference Publications, 2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Multibeam satellite systems have been recently studied in order to provide broadband services to their coverage area by employing fractional frequency reuse pattern. Towards a more spectrally efficient system, the designer ...

    • Next generation multibeam satellite systems 

      Joroughi, Vahid (Universitat Politècnica de Catalunya, 2015-12-02)
      Tesi
      Accés obert
      Satellite communication will play a central role towards fulfilling next generation 5G communication requirements. As a matter of fact, anytime-anywhere connectivity cannot be conceived without the presence of the satellite ...

    • On-board beam generation for multibeam satellite systems 

      Joroughi, Vahid; Vázquez, Miguel Ángel; Pérez Neira, Ana Isabel; Devillers, Bertrand (2017-03-27)
      Article
      Accés obert
      This paper aims at designing an onboard beam generation process for a hybrid onboard on-ground multibeam satellite architecture. The proposed method offers a good tradeoff between total throughput and feeder link bandwidth ...

    • Precoding in multigateway multibeam satellite systems 

      Joroughi, Vahid; Vazquez, Miguel Angel; Pérez Neira, Ana Isabel (2016-07)
      Article
      Accés obert
      This paper considers a multigateway multibeam satellite system with multiple feeds per beam. In these systems, each gateway serves a set of beams (cluster) so that the overall data traffic is generated at different ...