191 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Cairo UniversityEG17 papers
- The Ohio State UniversityUS16 papers
- Alexandria UniversityEG13 papers
- American University in CairoEG10 papers
- Qatar UniversityQA9 papers
- Egypt-Japan University of Science and TechnologyEG7 papers
- Ain Shams UniversityEG6 papers
- Goethe University FrankfurtDE5 papers
- Joint Institute for Nuclear ResearchRU5 papers
- Helwan UniversityEG4 papers
- Military Technical CollegeEG4 papers
- Princeton UniversityUS4 papers
7 papers · 2 filters
Band Allocation for Cognitive Radios with Buffered Primary and Secondary Users
Ahmed El Shafie, Ahmed Sultan, Tamer Khattab
In this paper, we study band allocation of buffered secondary users (SUs) to orthogonal primary licensed bands, where each primary band is assigned…
A Pricing-Based Cooperative Spectrum Sharing Stackelberg Game
Ramy E. Ali, Karim G. Seddik, Mohammed Nafie +1
We consider the problem of cooperative spectrum sharing among a primary user (PU) and multiple secondary users (SUs) under quality of service (QoS) constraints. The SUs network is…
Protocol Design and Stability Analysis of Cooperative Cognitive Radio Users
Ahmed El Shafie, Tamer Khattab, H. Vincent Poor
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…
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…
Optimal Selection of Spectrum Sensing Duration for an Energy Harvesting Cognitive Radio
Ahmed El Shafie, Ahmed Sultan
In this paper, we consider a time-slotted cognitive radio (CR) setting with buffered and energy harvesting primary and CR users. At the beginning of each time slot, the CR user pro…
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…