Now showing items 1-4 of 4

  • Context discovery mechanisms for cognitive radio 

    Bolea, Liliana; Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, José Oriol (IEEE, 2011)
    Conference report
    Restricted access - publisher's policy
    This paper addresses the estimation of different context parameters of a primary user network based on signal strength measurements obtained by a sensor network and without any prior knowledge of the antenna types used by ...
  • Image processing techniques as a support to transmitter positioning determination in cognitive radio networks 

    Bolea, Liliana; Pérez Romero, Jordi; Agustí Comes, Ramon; Sallent Roig, José Oriol (2010)
    Conference report
    Open Access
    Cognitive radio is a new paradigm for wireless communications offering a solution to conciliate the current spectrum demand growth and underutilization without changes to the existing legacy wireless systems. Secondary ...
  • ML aided context feature extraction for cognitive radio 

    Bolea, Liliana; Pérez Romero, Jordi; Agustí Comes, Ramon (2013-10)
    Article
    Restricted access - publisher's policy
    This paper addresses the estimation of different context features of a primary user network, such as transmitters’ positions, antenna patterns and directions, and propagation model characteristics. It is based on radio ...
  • Received signal interpolation for context discovery in cognitive radio 

    Bolea, Liliana; Pérez Romero, Jordi; Agustí Comes, Ramon (2011)
    Conference report
    Open Access
    This paper addresses the context acquisition to characterize different features of a primary network based on the power measurements obtained by a sensor network. In particular, it presents a comparative study of the ...