• Adaptive modulation in multi-user cognitive radio networks over fading channels 

      Foukalas, F.; Khattab, T.; Poor, H. Vincent ( IEEE Computer Society , 2013 , Conference Paper)
      In this paper, the performance of adaptive modulation in multi-user cognitive radio networks over fading channels is analyzed. Multi-user diversity is considered for opportunistic user selection among multiple secondary ...
    • Federated Learning over Energy Harvesting Wireless Networks 

      Hamdi, Rami; Chen, Mingzhe; Ben Said, Ahmed; Qaraqe, Marwa; Poor, H. Vincent ( Institute of Electrical and Electronics Engineers Inc. , 2022 , Article)
      In this article, the deployment of federated learning (FL) is investigated in an energy harvesting wireless network in which the base stations (BSs) employs massive multiple-input-multiple-output (MIMO) to serve a set of ...
    • On the Design of a Relay-Assisted Network 

      El Shafie, Ahmed; Khattab, Tamer; Sultan, Ahmed; Poor, H. Vincent ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Article)
      A relay network composed of a source, a set of relays, and a destination is considered. A queueing framework is proposed, in which each node maintains a buffer to store its incoming traffic. An optimization-based formulation ...
    • On the design of relay-assisted primary-secondary networks 

      Shafie, Ahmed El; Sultan, Ahmed; Khattab, Tamer; Poor, H. Vincent ( Institute of Electrical and Electronics Engineers Inc. , 2015 , Conference Paper)
      The use of N cognitive relays to assist primary and secondary transmissions in a time-slotted cognitive setting with one primary user (PU) and one secondary user (SU) is investigated. An overlapped spectrum sensing strategy ...
    • Protocol design and stability analysis of cooperative cognitive radio users 

      El Shafie, Ahmed; Khattab, Tamer; Poor, H. Vincent ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)
      A single cognitive radio transmitter-receiver pair shares the spectrum with two primary users communicating with their respective receivers. Each primary user has a local traffic queue, whereas the cognitive user has three ...
    • User Scheduling in Federated Learning over Energy Harvesting Wireless Networks 

      Hamdi, Rami; Chen, Mingzhe; Ben Said, Ahmed; Qaraqe, Marwa; Poor, H. Vincent ( Institute of Electrical and Electronics Engineers Inc. , 2021 , Conference Paper)
      In this paper, the deployment of federated learning (FL) is investigated in an energy harvesting wireless network in which the base station (BS) is equipped with a massive multiple-input multiple-output (MIMO) system and ...