24 citations · 121 across the 27 of their papers we have counts for
5 papers · 1 filter
Improved Spectrum Mobility using Virtual Reservation in Collaborative Cognitive Radio Networks
Ayman T. Abdel-Hamid, Ahmed H. Zahran, Tamer ElBatt
Cognitive radio technology would enable a set of secondary users (SU) to opportunistically use the spectrum licensed to a primary user (PU). On the appearance of this PU on a speci…
Coverage Probability Analysis for Wireless Networks Using Repulsive Point Processes
Abdelrahman M. Ibrahim, Tamer ElBatt, Amr El-Keyi
The recent witnessed evolution of cellular networks from a carefully planned deployment to more irregular, heterogeneous deployments of Macro, Pico and Femto-BSs motivates new anal…
Cooperative Access in Cognitive Radio Networks: Stable Throughput and Delay Tradeoffs
Mahmoud Ashour, Amr A. El-Sherif, Tamer ElBatt +1
In this paper, we study and analyze fundamental throughput-delay tradeoffs in cooperative multiple access for cognitive radio systems. We focus on the class of randomized cooperati…
Effective Capacity of Delay Constrained Cognitive Radio Links Exploiting Primary Feedback
Ahmed H. Anwar, Karim G. Seddik, Tamer ElBatt +1
In this paper, we analyze the performance of a secondary link in a cognitive radio (CR) system operating under statistical quality of service (QoS) delay constraints. In particular…
A Cooperative Q-learning Approach for Real-time Power Allocation in Femtocell Networks
Hussein Saad, Amr Mohamed, Tamer ElBatt
In this paper, we address the problem of distributed interference management of cognitive femtocells that share the same frequency range with macrocells (primary user) using distri…