Now showing items 1-2 of 2

  • ARQ Protocols in Cognitive Decode-and-Forward Relay Networks: Opportunities Gain 

    Zongsheng Zhang; Qihui Wu; Jinlong Wang (Společnost pro radioelektronické inženýrství, 2015-04)
    In this paper, two novel automatic-repeat-request (ARQ) based protocols were proposed, which exploit coop- eration opportunity inherent in secondary retransmission to create access opportunities. If the signal was not ...
  • Sensing Task Allocation for Heterogeneous Channels in Cooperative Spectrum Sensing 

    Qihui Wu; Han Han; Jinlong Wang; Zhitao Zhao; Ze Zhang (Společnost pro radioelektronické inženýrství, 2010-12)
    In the traditional centralized cooperative spectrum sensing, all secondary users sense the same channel. But, for a given channel, there exists detection performance diversity among all the users, due to the different ...