Now showing items 1-4 of 4

  • Mutual information analysis of frequency packing schemes in multi-beam satellite systemswith phase noise 

    Bas, Joan; Caus López, Marius; Pérez Neira, Ana Isabel; Modenini, Andrea; Ebert, Johannes; García Armada, Ana (Curran, 2017)
    Conference report
    Restricted access - publisher's policy
    This paper analyzes frequency packing schemes applied to multibeam satellite systems. In order to simulate a realistic scenario we have taken into account the presence of co-channel interference and spectrum limitations. ...
  • On the physical layer security of IoT devices over satellite 

    Bas, Joan; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Open Access
    The security in satellite communications is a key issue due to the large footprint of the beams. This is specially critical in IoT devices that transmit data directly to satellite. Take into account that IoT devices are ...
  • Performance evaluation of frame slotted-ALOHA with succesive interference cancellation in machine-to-machine networks 

    Vázquez-Gallego, Francisco; Rietti, Marc; Bas, Joan; Alonso-Zárate, Jesús; Alonso Zárate, Luis Gonzaga (VDE Conference Publications, 2014)
    Conference report
    Restricted access - publisher's policy
    Machine-to-Machine (M2M) area networks connect a gateway with a huge number of energy-constrained end-devices. Therefore, energy efficiency is essential to prolong the lifetime of M2M networks. In this paper, we consider ...
  • Practical security considerations for IoT systems over satellite 

    Bas, Joan; Pérez Neira, Ana Isabel (Ka and Broadband Communications, Navigation and Earth Observation Conference, 2019)
    Conference report
    Open Access
    Currently, the forecast for the European market for IoT is a yearly 19.8% increase up to reach $241 billion in 2025. Thisstrong growing will be concentrated in verticals from manufacturing, utilities, retail and transportation ...