28 citations · 76 across the 48 of their papers we have counts for
14 papers · 1 filter
Small Cell Association with Networked Flying Platforms: Novel Algorithms and Performance Bounds
Syed Awais Wahab Shah, Tamer Khattab, Muhammad Zeeshan Shakir +2
Fifth generation (5G) and beyond-5G (B5G) systems expect coverage and capacity enhancements along with the consideration of limited power, cost and spectrum. Densification of small…
Association of Networked Flying Platforms with Small Cells for Network Centric 5G+ C-RAN
Syed Awais Wahab Shah, Tamer Khattab, Muhammad Zeeshan Shakir +1
5G+ systems expect enhancement in data rate and coverage area under limited power constraint. Such requirements can be fulfilled by the densification of small cells (SCs). However,…
A Distributed Approach for Networked Flying Platform Association with Small Cells in 5G+ Networks
Syed Awais Wahab Shah, Tamer Khattab, Muhammad Zeeshan Shakir +1
The densification of small-cell base stations in a 5G architecture is a promising approach to enhance the coverage area and facilitate the ever increasing capacity demand of end us…
On Spectrum Sharing Between Energy Harvesting Cognitive Radio Users and Primary Users
Ahmed El Shafie, Mahmoud Ashour, Tamer Khattab +1
This paper investigates the maximum secondary throughput for a rechargeable secondary user (SU) sharing the spectrum with a primary user (PU) plugged to a reliable power supply. Th…
A Novel Spectrally-Efficient Scheme for Physical Layer Network Coding
Ahmed G. Helmy, Tamer Khattab, Mazen O. Hasna
In this paper, we propose a novel three-time-slot transmission scheme combined with an efficient embedded linear channel equalization (ELCE) technique for the Physical layer Networ…
Energy-Efficient Cooperative Cognitive Relaying Schemes for Cognitive Radio Networks
Ahmed El Shafie, Tamer Khattab, Amr El-Keyi
We investigate a cognitive radio network in which a primary user (PU) may cooperate with a cognitive radio user (i.e., a secondary user (SU)) for transmissions of its data packets.…
Maximum Throughput of a Secondary User Cooperating with an Energy-Aware Primary User
Ahmed El Shafie, Ahmed Sultan, Tamer Khattab
This paper proposes a cooperation protocol between a secondary user (SU) and a primary user (PU) which dedicates a free frequency subband for the SU if cooperation results in energ…
Probabilistic Band-Splitting for a Buffered Cooperative Cognitive Terminal
Ahmed El Shafie, Ahmed Sultan, Tamer Khattab
In this paper, we propose a cognitive protocol that involves cooperation between the primary and secondary users. In addition to its own queue, the secondary user (SU) has a queue…
Cooperative Cognitive Relaying Under Primary and Secondary Quality of Service Satisfaction
Ahmed El Shafie, Tamer Khattab
This paper proposes a new cooperative protocol which involves cooperation between primary and secondary users. We consider a cognitive setting with one primary user and multiple se…
Optimal Cooperative Cognitive Relaying and Spectrum Access for an Energy Harvesting Cognitive Radio: Reinforcement Learning Approach
Ahmed El Shafie, Tamer Khattab, Hussien Saad +1
In this paper, we consider a cognitive setting under the context of cooperative communications, where the cognitive radio (CR) user is assumed to be a self-organized relay for the…
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…
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…
Packet Relaying Control in Sensing-based Spectrum Sharing Systems
F. Foukalas, T. Khattab, H. V. Poor
Cognitive relaying has been introduced for opportunistic spectrum access systems by which a secondary node forwards primary packets whenever the primary link faces an outage condit…
To Relay or Not To Relay in Cognitive Radio Sensor Networks
Fotis Foukalas, Tamer Khattab
Recent works proposed the relaying at the MAC layer in cognitive radio networks whereby the primary packets are forwarded by the secondary node maintaining an extra queue devoted t…