Browsing Electrical Engineering by Author "El Shafie, Ahmed"

Now showing items 21-22 of 22

    • Transmit and receive cooperative cognition: Protocol design and stability analysis 

      El Shafie, Ahmed; El-Keyi, Amr; Khattab, Tamer; Nafie, Mohamed ( IEEE Computer Society , 2013 , Conference Paper)
      In this paper, we investigate the stability of a cooperative cognitive system. We propose a cooperative secondary transmitter-receiver system (CSTR), where, the secondary transmitter (ST) and the secondary receiver (SR) ...

    • Wiretap TDMA Networks with Energy-Harvesting Rechargeable-Battery Buffered Sources 

      El Shafie, Ahmed; Al-dhahir, Naofal; Ding, Zhiguo; Duong, Trung Q.; Hamila, Ridha ( IEEE , 2019 , Article)
      We investigate the physical-layer security of an uplink wireless time-division multiple-access channel with energy-harvesting source nodes. We consider a set of source nodes equipped with rechargeable batteries and information ...