Cooperative cognitive relaying with ordered cognitive multiple access. - Ahmed El Shafie 001; Ahmed K. Sultan (GLOBECOM, 2012)

Optimal random access and random spectrum sensing for an energy harvesting cognitive radio. - Ahmed El Shafie 001; Ahmed K. Sultan (WiMob, 2012)

Cooperation via Cognitive System: Protocol Design and Performance Analysis - Ahmed El Shafie 001; Amr El-Keyi; Tamer Khattab; Mohammed Nafie (CoRR, 2012)

Optimal Spectrum Access for Cognitive Radios - Ahmed El Shafie 001 (CoRR, 2012)

Transmit and receive cooperative cognition: Protocol design and stability analysis. - Ahmed El Shafie 001; Amr El-Keyi; Tamer Khattab; Mohammed Nafie (CrownCom, 2013)

Optimal selection of spectrum sensing duration for an energy harvesting cognitive radio. - Ahmed El Shafie 001; Ahmed K. Sultan (GLOBECOM, 2013)

Cooperation Between a Primary Terminal and an Energy Harvesting Cognitive Radio Terminal. - Ahmed El Shafie 001; Tamer Khattab; Amr El-Keyi; Mohammed Nafie (CoRR, 2013)

Optimal Random Access for a Cognitive Radio Terminal with Energy Harvesting Capability. - Ahmed El Shafie 001; Ahmed K. Sultan (IEEE Commun. Lett., 2013)

Stability Analysis of an Ordered Cognitive Multiple-Access Protocol. - Ahmed El Shafie 001; Ahmed K. Sultan-Salem (IEEE Trans. Veh. Technol., 2013)

Cooperative cognitive relaying under primary and secondary quality of service satisfaction. - Ahmed El Shafie 001; Tamer Khattab (PIMRC, 2014)

Throughput maximization via adjusting packet size of a buffered cognitive radio user. - Ahmed El Shafie 001; Tamer Khattab (PIMRC, 2014)

Maximum throughput of a cooperative energy harvesting cognitive radio user. - Ahmed El Shafie 001; Tamer Khattab (PIMRC, 2014)

Probabilistic band-splitting for a buffered cooperative cognitive terminal. - Ahmed El Shafie 001; Ahmed K. Sultan; Tamer Khattab (PIMRC, 2014)

Spectrum-Aggregating Cognitive Multi-Antenna User with Multiple Primary Users. - Ahmed El Shafie 001; Tamer Khattab (VTC Fall, 2014)

Protocol design and stability analysis of cooperative cognitive radio users. - Ahmed El Shafie 001; Tamer Khattab; H. Vincent Poor (WCNC, 2014)

Band allocation for cognitive radios with buffered primary and secondary users. - Ahmed El Shafie 001; Ahmed K. Sultan; Tamer Khattab (WCNC, 2014)

Maximum throughput of a secondary user cooperating with an energy-aware primary user. - Ahmed El Shafie 001; Ahmed K. Sultan; Tamer Khattab (WiOpt, 2014)

Maximum Throughput for a Cognitive Radio Multi-Antenna User with Multiple Primary Users. - Ahmed El Shafie 001; Tamer Khattab (CoRR, 2014)

Cooperative Cognitive Relaying Protocol for an Energy Harvesting Cognitive Radio User. - Ahmed El Shafie 001; Tamer Khattab (CoRR, 2014)

Optimal Cooperative Cognitive Relaying and Spectrum Access for an Energy Harvesting Cognitive Radio: Reinforcement Learning Approach. - Ahmed El Shafie 001; Tamer Khattab (CoRR, 2014)

On Orthogonal Band Allocation for Multi-User Mutli-Band Cognitive Radio Networks. - Ahmed El Shafie 001; Tamer Khattab (CoRR, 2014)

Energy-Efficient Cooperative Cognitive Relaying Protocols for Full-Duplex Cognitive Radio Users and Delay-Aware Primary Users. - Ahmed El Shafie 001; Tamer Khattab; Amr El-Keyi; H. Vincent Poor (CoRR, 2014)

Relay-Assisted Primary and Secondary Transmissions. - Ahmed El Shafie 001; Ahmed K. Sultan; Tamer Khattab (CoRR, 2014)

Optimal Random Access and Random Spectrum Sensing for an Energy Harvesting Cognitive Radio with and without Primary Feedback Leveraging. - Ahmed El Shafie 001 (EAI Endorsed Trans. Cogn. Commun., 2014)

Space-Time Coding for an Energy Harvesting Cooperative Secondary Terminal. - Ahmed El Shafie 001 (IEEE Commun. Lett., 2014)

Optimization of a Relay-Assisted Link With Buffer State Information at the Source. - Ahmed El Shafie 001; Mohammad Galal Khafagy; Ahmed K. Sultan (IEEE Commun. Lett., 2014)

Cognitive Access Protocol for Alleviating Sensing Errors in Cognitive Multiple-Access Systems. - Ahmed El Shafie 001 (IEEE Wirel. Commun. Lett., 2014)

Cooperative Access Schemes for Efficient SWIPT Transmissions in Cognitive Radio Networks. - Ahmed El Shafie 001; Naofal Al-Dhahir; Ridha Hamila (GLOBECOM Workshops, 2015)

Throughput maximization for buffer-aided hybrid half-/full-duplex relaying with self-interference. - Mohammad Galal Khafagy; Ahmed El Shafie 001; Ahmed K. Sultan; Mohamed-Slim Alouini (ICC, 2015)

Interference-based optimal power-efficient access scheme for cognitive radio networks. - Ahmed H. Anwar; Ahmed El Shafie 001; Amr Mohamed 001; Tamer A. ElBatt; Mohsen Guizani (ICNC, 2015)

Power-optimal feedback-based random spectrum access for an energy harvesting cognitive user. - Mahmoud Ashour; Ahmed El Shafie 001; Amr Mohamed 001; Tamer Khattab (ICNC, 2015)

On spectrum sharing between energy harvesting cognitive radio users and primary users. - Ahmed El Shafie 001; Mahmoud Ashour; Tamer Khattab; Amr Mohamed 001 (ICNC, 2015)

Optimal spectrum access for a rechargeable cognitive radio user based on energy buffer state. - Ahmed El Shafie 001; Mahmoud Ashour; Amr Mohamed 001; Tamer Khattab (ICNC, 2015)

Energy-efficient cooperative relaying protocol for full-duplex cognitive radio users and delay-aware primary users. - Ahmed El Shafie 001; Tamer Khattab (ICNC, 2015)

MMSE sparse beamforming for power-constrained large two-way relay AF networks. - Homa Eghbali; Ahmed El Shafie 001; Junho Lee; Sami Muhaidat; Naofal Al-Dhahir (ISSPIT, 2015)

Sparsity-Cognizant Multiple-Access Schemes for Large Wireless Networks with Node Buffers. - Ahmed El Shafie 001; Naofal Al-Dhahir; Ridha Hamila (MASS, 2015)

Exploiting sparsity of relay-assisted cognitive radio networks. - Ahmed El Shafie 001; Naofal Al-Dhahir; Ridha Hamila (WCNC, 2015)

On the design of relay-assisted primary-secondary networks. - Ahmed El Shafie 001; Ahmed K. Sultan; Tamer Khattab; H. Vincent Poor (WCNC, 2015)

A Secure Multiple-Access Scheme for Rechargeable Wireless Sensors in the Presence of an Eavesdropper. - Ahmed El Shafie 001; Naofal Al-Dhahir (IEEE Commun. Lett., 2015)

On the Design of a Relay-Assisted Network. - Ahmed El Shafie 001; Tamer Khattab; Ahmed K. Sultan; H. Vincent Poor (IEEE Commun. Lett., 2015)

Comments on "Optimal utilization of a cognitive shared channel with a rechargeable primary source node". - Ahmed El Shafie 001; Ahmed K. Sultan-Salem (J. Commun. Networks, 2015)

A Sparsity-Aware Cooperative Protocol for Cognitive Radio Networks With Energy-Harvesting Primary User. - Ahmed El Shafie 001; Naofal Al-Dhahir; Ridha Hamila (IEEE Trans. Commun., 2015)

On Orthogonal Band Allocation for Multiuser Multiband Cognitive Radio Networks: Stability Analysis. - Ahmed El Shafie 001; Tamer Khattab (IEEE Trans. Commun., 2015)

On Secure Communications Over a Wiretap Channel With Fixed-Rate Transmission: Protocol Design and Queueing Analysis. - Ahmed El Shafie 001; Naofal Al-Dhahir (IEEE Wirel. Commun. Lett., 2015)

Cyclostationary Noise Modeling Based on Frequency-Shift Filtering in NB-PLC. - Mahmoud Elgenedy; Mostafa Sayed; Ahmed El Shafie 001; Il Han Kim; Naofal Al-Dhahir (GLOBECOM, 2016)

Spatio-Temporal Artificial Noise Design for Secure MISOSE-OFDM Systems. - Ahmed El Shafie 001; Zhiguo Ding 001; Naofal Al-Dhahir (GLOBECOM, 2016)

QoS-Based Design for Security Enhancement in TDMA-Based Wireless Networks. - Ahmed El Shafie 001; Trung Quang Duong; Naofal Al-Dhahir (GLOBECOM Workshops, 2016)

Relay-Assisted Primary and Secondary Transmissions in Cognitive Radio Networks. - Ahmed El Shafie 001; Tamer Khattab; Ahmed K. Sultan (IEEE Access, 2016)

Throughput of a cooperative energy harvesting secondary user in cognitive radio networks. - Ahmed El Shafie 001; Tamer Khattab (Trans. Emerg. Telecommun. Technol., 2016)

Artificial-Noise-Aided Secure MIMO Full-Duplex Relay Channels With Fixed-Power Transmissions. - Ahmed El Shafie 001; Dusit Niyato; Naofal Al-Dhahir (IEEE Commun. Lett., 2016)

Physical-Layer Security of a Buffer-Aided Full-Duplex Relaying System. - Ahmed El Shafie 001; Ahmed K. Sultan; Naofal Al-Dhahir (IEEE Commun. Lett., 2016)

Maximum Secondary Stable Throughput of a Cooperative Secondary Transmitter-Receiver Pair: Protocol Design and Stability Analysis. - Ahmed El Shafie 001; Tamer Khattab; Amr El-Keyi; Mohammed Nafie (IEEE Trans. Veh. Technol., 2016)

Secure Communications in the Presence of a Buffer-Aided Wireless-Powered Relay With Self-Energy Recycling. - Ahmed El Shafie 001; Naofal Al-Dhahir (IEEE Wirel. Commun. Lett., 2016)

Security of Rechargeable Energy-Harvesting Transmitters in Wireless Networks. - Ahmed El Shafie 001; Dusit Niyato; Naofal Al-Dhahir (IEEE Wirel. Commun. Lett., 2016)

Enhancing the PHY-Layer Security of MIMO Buffer-Aided Relay Networks. - Ahmed El Shafie 001; Dusit Niyato; Naofal Al-Dhahir (IEEE Wirel. Commun. Lett., 2016)

On the coexistence of a primary user with an energy harvesting secondary user: a case of cognitive cooperation. - Ahmed El Shafie 001; Tamer Khattab; Amr El-Keyi; Mohammed Nafie (Wirel. Commun. Mob. Comput., 2016)

Enhancing the reliability of two-way vehicle-to-grid communications. - Mostafa Sayed; Ahmed El Shafie 001; Mahmoud Elgenedy; Rakan C. Chabaan; Naofal Al-Dhahir (Intelligent Vehicles Symposium, 2017)

Securing Untrusted RF-EH Relay Networks Using Cooperative Jamming Signals. - Ahmed El Shafie 001; Asma Mabrouk; Kamel Tourki; Naofal Al-Dhahir; Ridha Hamila (IEEE Access, 2017)

Impact of the Wireless Network's PHY Security and Reliability on Demand-Side Management Cost in the Smart Grid. - Ahmed El Shafie 001; Dusit Niyato; Ridha Hamila; Naofal Al-Dhahir (IEEE Access, 2017)

Achievable Rates of Buffer-Aided Full-Duplex Gaussian Relay Channels. - Ahmed El Shafie 001; Ahmed K. Sultan; Ioannis Krikidis; Naofal Al-Dhahir; Ridha Hamila (IEEE Access, 2017)

Mutual Information of Buffer-Aided Full-Duplex Relay Channels. - Ahmed El Shafie 001; Ahmed K. Sultan; Ioannis Krikidis; Naofal Al-Dhahir (CoRR, 2017)

Secure Beamforming in Full-Duplex SWIPT Systems. - Yanjie Dong; Ahmed El Shafie 001; Md. Jahangir Hossain 002; Julian Cheng; Naofal Al-Dhahir; Victor C. M. Leung (CoRR, 2017)

On the Monetary Loss Due to Passive and Active Attacks on MIMO Smart Grid Communications. - Ahmed El Shafie 001; Hamadi Chihaoui; Ridha Hamila; Naofal Al-Dhahir; Adel Gastli; Lazhar Ben-Brahim (CoRR, 2017)

Adaptive Secure Transmission for RF-EH Untrusted Relaying with Alien Eavesdropping. - Asma Mabrouk; Ahmed El Shafie 001; Kamel Tourki; Naofal Al-Dhahir (IEEE Commun. Lett., 2017)

Security of an Ordered-Based Distributive Jamming Scheme. - Ahmed El Shafie 001; Dusit Niyato; Naofal Al-Dhahir (IEEE Commun. Lett., 2017)

An Artificial-Noise-Aided Hybrid TS/PS Scheme for OFDM-Based SWIPT Systems. - Ahmed El Shafie 001; Kamel Tourki; Naofal Al-Dhahir (IEEE Commun. Lett., 2017)

Probabilistic Jamming/Eavesdropping Attacks to Confuse a Buffer-Aided Transmitter-Receiver Pair. - Ahmed El Shafie 001; Kamel Tourki; Zhiguo Ding 001; Naofal Al-Dhahir (IEEE Commun. Lett., 2017)

AN-Aided Relay-Selection Scheme for Securing Untrusted RF-EH Relay Systems. - Asma Mabrouk; Ahmed El Shafie 001; Kamel Tourki; Naofal Al-Dhahir (IEEE Trans. Green Commun. Netw., 2017)

Hybrid Spatio-Temporal Artificial Noise Design for Secure MIMOME-OFDM Systems. - Ahmed El Shafie 001; Zhiguo Ding 001; Naofal Al-Dhahir (IEEE Trans. Veh. Technol., 2017)

QoS-Aware Enhanced-Security for TDMA Transmissions from Buffered Source Nodes. - Ahmed El Shafie 001; Trung Quang Duong; Naofal Al-Dhahir (IEEE Trans. Wirel. Commun., 2017)

A Secure Relay Selection AN-Aided Scheme for Dual-Hop DF Relay Networks With Two-Sided Eavesdropping. - Ahmed El Shafie 001; Asma Mabrouk; Kamel Tourki; Naofal Al-Dhahir (IEEE Wirel. Commun. Lett., 2017)

Efficient AN-Aided Scheme to Power RF-EH Source Nodes and Secure Their Transmissions. - Ahmed El Shafie 001; Asma Mabrouk; Kamel Tourki; Naofal Al-Dhahir (IEEE Wirel. Commun. Lett., 2017)

Securing OFDM-based wireless links using temporal artificial-noise injection. - Mohamed F. Marzban; Ahmed El Shafie 001; Rakan C. Chabaan; Naofal Al-Dhahir (CCNC, 2018)

A hybrid artificial-noise and secret-key scheme for securing OFDM transmissions in V2G networks. - Ahmed El Shafie 001; Mohamed F. Marzban; Rakan Chabaan; Naofal Al-Dhahir (CCNC, 2018)

Secure Beamforming in Full-Duplex SWIPT Systems with Loopback Self-Interference Cancellation. - Yanjie Dong; Ahmed El Shafie 001; Md. Jahangir Hossain 002; Julian Cheng; Naofal Al-Dhahir; Victor C. M. Leung (ICC, 2018)

Securing SC-FDE Uplink Transmissions Using Temporal Artificial Noise under Three Detection Strategies. - Mohamed F. Marzban; Ahmed El Shafie 001; Rakan Chabaan; Naofal Al-Dhahir (ICC Workshops, 2018)

An Artificial-Noise-Aided Secure Scheme for Hybrid Parallel PLC/Wireless OFDM Systems. - Ahmed El Shafie 001; Mohamed F. Marzban; Rakan Chabaan; Naofal Al-Dhahir (ICC, 2018)

Security in MIMO-OFDM SWIPT Networks. - Tiep Minh Hoang; Ahmed El Shafie 001; Trung Quang Duong; Hoang Duong Tuan; Alan Marshall 001 (PIMRC, 2018)

Adaptive Transmission for Secure AN-Aided Cooperative Networks with RF-EH Untrusted Relaying using Outdated CSI. - Asma Mabrouk; Kamel Tourki; Ahmed El Shafie 001; Naofal Al-Dhahir; Noureddine Hamdi (PIMRC, 2018)

Securing Untrusted Full-Duplex Relay Channels in the Presence of Multiple External Cluster-Based Eavesdroppers. - Ahmed El Shafie 001; Asma Mabrouk; Kamel Tourki; Naofal Al-Dhahir; Mazen O. Hasna (CoRR, 2018)

Energy-efficient cooperative cognitive relaying schemes for cognitive radio networks. - Ahmed El Shafie 001; Tamer Khattab; Amr El-Keyi (Phys. Commun., 2018)

Secure Sum-Rate-Optimal MIMO Multicasting Over Medium-Voltage NB-PLC Networks. - Ahmed ElSamadouny; Ahmed El Shafie 001; Mohamed M. Abdallah 001; Naofal Al-Dhahir (IEEE Trans. Smart Grid, 2018)

Secret-Key-Aided Scheme for Securing Untrusted DF Relaying Networks. - Ahmed El Shafie 001; Ahmed Kamal Sultan-Salem; Asma Mabrouk; Kamel Tourki; Naofal Al-Dhahir (IEEE Trans. Veh. Technol., 2018)

Secure Beamforming in Full-Duplex MISO-SWIPT Systems With Multiple Eavesdroppers. - Yanjie Dong; Ahmed El Shafie 001; Md. Jahangir Hossain 002; Julian Cheng; Naofal Al-Dhahir; Victor C. M. Leung (IEEE Trans. Wirel. Commun., 2018)

Thresholds Optimization for One-Bit Feedback Multi-User Scheduling. - Mohammed Hafez; Ahmed El Shafie 001; Mohammad Shaqfeh; Tamer Khattab; Hussein M. Alnuweiri; Hüseyin Arslan (IEEE Wirel. Commun. Lett., 2018)

A Secret-Key-Aided Scheme to Secure Transmissions From Single-Antenna RF-EH Source Nodes. - Ahmed El Shafie 001; Asma Mabrouk; Kamel Tourki; Naofal Al-Dhahir; Ridha Hamila (IEEE Wirel. Commun. Lett., 2018)

Security-Enhanced SC-FDMA Transmissions Using Temporal Artificial-Noise and Secret Key Aided Schemes. - Mohamed F. Marzban; Ahmed El Shafie 001; Naofal Al-Dhahir; Ridha Hamila (IEEE Access, 2019)

Wiretap TDMA Networks With Energy-Harvesting Rechargeable-Battery Buffered Sources. - Ahmed El Shafie 001; Naofal Al-Dhahir; Zhiguo Ding 001; Trung Quang Duong; Ridha Hamila (IEEE Access, 2019)

Comparison Between TDMA and Random Multiple-Access Energy-Harvesting Networks Under Security Constraints. - Ahmed El Shafie 001 (IEEE Commun. Lett., 2019)

Impact of Passive and Active Security Attacks on MIMO Smart Grid Communications. - Ahmed El Shafie 001; Hamadi Chihaoui; Ridha Hamila; Naofal Al-Dhahir; Adel Gastli; Lazhar Ben-Brahim (IEEE Syst. J., 2019)

Introduction to the special section on deep reinforcement learning for future wireless communication networks. - Shimin Gong; Dinh Thai Hoang; Dusit Niyato; Ahmed El Shafie 001; Antonio De Domenico; Emilio Calvanese Strinati; Jakob Hoydis (IEEE Trans. Cogn. Commun. Netw., 2019)

Centralized and Distributed Cognitive Relay-Selection Schemes for SWIPT Cognitive Networks. - Ahmed M. Salama; Islam Samy; Ahmed El Shafie 001; Amr Mohamed 001; Tamer Khattab (IEEE Trans. Commun., 2019)

On the Delay/Throughput-Security Tradeoff in Wiretap TDMA Networks With Buffered Nodes. - Ahmed El Shafie 001; Naofal Al-Dhahir; Zhiguo Ding 001; Ridha Hamila (IEEE Trans. Wirel. Commun., 2019)

Deep Reinforcement Learning Algorithm for Smart Data Compression under NOMA-Uplink Protocol. - Mohamed Elsayed 010; Ahmed Badawy; Ahmed El Shafie 001; Amr Mohamed 001; Tamer Khattab (CCECE, 2020)

On the Performance of Quickest Detection Spectrum Sensing: The Case of Cumulative Sum. - Ahmed Badawy; Ahmed El Shafie 001; Tamer Khattab (IEEE Commun. Lett., 2020)

Artificial-Noise-Aided Energy-Efficient Secure Beamforming for Multi-Eavesdroppers in Cognitive Radio Networks. - Pu Chen; Jian Ouyang; Wei-Ping Zhu 001; Min Lin 001; Ahmed El Shafie 001; Naofal Al-Dhahir (IEEE Syst. J., 2020)

Securing Untrusted Full-Duplex Relay Channels in the Presence of Multiple External Cluster-Based Eavesdroppers. - Asma Mabrouk; Ahmed El Shafie 001; Kamel Tourki; Naofal Al-Dhahir; Noureddine Hamdi (IEEE Syst. J., 2020)

Security and Energy Harvesting for MIMO-OFDM Networks. - Tiep Minh Hoang; Ahmed El Shafie 001; Daniel Benevides da Costa; Trung Q. Duong; Hoang Duong Tuan; Alan Marshall 001 (IEEE Trans. Commun., 2020)

Relay-Selection Refinement Scheme for Secrecy in Untrusted RF-EH Relay Systems With Adaptive Transmission Under Outdated CSI. - Asma Mabrouk; Kamel Tourki; Ahmed El Shafie 001; Naofal Al-Dhahir (IEEE Trans. Green Commun. Netw., 2020)

Securing OFDM-Based NOMA SWIPT Systems. - Ahmed Badawy; Ahmed El Shafie 001 (IEEE Trans. Veh. Technol., 2020)

Secure AF Relaying in Power-Constrained UAV Networks. - Lutfi Samara; Abubakr O. Al-Abbasi; Ahmed El Shafie 001; Ridha Hamila; Naofal Al-Dhahir (VTC Spring, 2021)

Securing Full-Duplex Amplify-and-Forward Relay-Aided Transmissions Through Processing-Time Optimization. - Mohamed F. Marzban; Ahmed El Shafie 001; Ahmed Kamal Sultan-Salem; Naofal Al-Dhahir (CoRR, 2021)

Novel Secret-Key-Assisted Schemes for Secure MISOME-OFDM Systems. - Mohamed F. Marzban; Ahmed El Shafie 001; Naofal Al-Dhahir (CoRR, 2021)

A Deep Reinforcement Learning Framework for Data Compression in Uplink NOMA-SWIPT Systems. - Mohamed Elsayed 010; Ahmed Badawy; Ahmed El Shafie 001; Amr Mohamed 001; Tamer Khattab (IEEE Internet Things J., 2022)

Enhanced physical layer security for energy harvesting relay-aided systems using joint relaying scheme. - Sarbani Ghose; Ahmed El Shafie 001 (Internet Technol. Lett., 2022)

Securing Full-Duplex Amplify-and-Forward Relay-Aided Communications Through Processing-Time Optimization. - Mohamed F. Marzban; Ahmed El Shafie 001; Ahmed K. Sultan; Naofal Al-Dhahir (IEEE Trans. Veh. Technol., 2022)