Now showing items 1-4 of 4

  • Achievable Outage Rates In Cognitive Radio Networks under Imperfect Spectrum Sensing 

    Tafaghodi Khajavi, N.; Sadough, S. M. S. (Společnost pro radioelektronické inženýrství, 2012-06)
    In this paper, we aim at deriving the outage rates achieved by the primary user due spectrum sensing in a cognitive radio network, that we call sensing-induced primary outage rates. To reach this goal, in the first step, ...
  • Improved Reception Schemes for Digital Video Broadcasting Based on Hierarchical Modulation 

    Sadough, S. M. S. (Společnost pro radioelektronické inženýrství, 2011-04)
    In this paper, we first provide an overview of Hierarchical Modulation (HM) along with the opportunities offered by this modulation in the context of the recent Digital Video Broadcasting standard for Satellite to Handheld ...
  • A New Method For Increasing the Accuracy of EM-based Channel Estimation 

    Sadough, S. M. S.; Modarresi, M. (Společnost pro radioelektronické inženýrství, 2011-12)
    It was recently shown that the detection performance can be significantly improved if the statistics of channel estimation errors are available and properly used at the receiver. Although in pilot-only channel estimation ...
  • A New Protocol for Cooperative Spectrum Sharing in Mobile Cognitive Radio Networks 

    Hosseini, S. A.; Abolhassani, B.; Sadough, S. M. S. (Společnost pro radioelektronické inženýrství, 2015-09)
    To optimize the usage of limited spectrum resources, cognitive radio (CR) can be used as a viable solution. The main contribution of this article is to propose a new protocol to increase throughput of mobile cooperative ...