On the Capacity of Underlay Multihop Cognitive Relaying Over Generalized-K Composite Fading Channels. - Majid H. Khoshafa; Saad Al-Ahmadi 001 (Wirel. Pers. Commun., 2017)

On the Physical Layer Security of Underlay Multihop Device-to-Device Relaying. - Majid H. Khoshafa; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed (WCNC, 2019)

Secure Transmission in Underlay D2D Communications Using Optimal Relay Selection. - Majid H. Khoshafa; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed (VTC Fall, 2020)

Enhancing Physical Layer Security Using Underlay Full-Duplex Relay-Aided D2D Communications. - Majid H. Khoshafa; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed; Ahmed Ibrahim 005 (WCNC, 2020)

Improving Physical Layer Security of Cellular Networks Using Full-Duplex Jamming Relay-Aided D2D Communications. - Majid H. Khoshafa; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed; Ahmed Ibrahim 005 (IEEE Access, 2020)

On the Physical Layer Security of Underlay Relay-Aided Device-to-Device Communications. - Majid H. Khoshafa; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed (IEEE Trans. Veh. Technol., 2020)

Secure Transmission in Wiretap Channels Using Full-Duplex Relay-Aided D2D Communications With Outdated CSI. - Majid H. Khoshafa; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed; Ahmed Ibrahim 005 (IEEE Wirel. Commun. Lett., 2020)

On the Performance of Secure Underlay Cognitive Radio Networks With Energy Harvesting and Dual-Antenna Selection. - Majid H. Khoshafa; Jules Merlin Mouatcho Moualeu; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed (IEEE Commun. Lett., 2021)

Reconfigurable Intelligent Surfaces-Aided Physical Layer Security Enhancement in D2D Underlay Communications. - Majid H. Khoshafa; Telex M. N. Nkouatchah; Mohamed Hossam Ahmed (IEEE Commun. Lett., 2021)

Active Reconfigurable Intelligent Surfaces-Aided Wireless Communication System. - Majid H. Khoshafa; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed; Alain Richard Ndjiongue (IEEE Commun. Lett., 2021)

Relay Selection for Improving Physical Layer Security in D2D Underlay Communications. - Majid H. Khoshafa; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed (IEEE Access, 2022)

RIS-Aided Physical Layer Security Improvement in Underlay Cognitive Radio Networks. - Majid H. Khoshafa; Telex M. N. Nkouatchah; Mohamed Hossam Ahmed (IEEE Syst. J., 2023)

Aerial Reconfigurable Intelligent Surface-Assisted Secured Wireless Communication Systems. - Majid H. Khoshafa; Gamil A. Ahmed; Telex Magloire Nkouatchah Ngatched; Marco Di Renzo (GLOBECOM, 2024)

User Clustering and Hybrid Precoding Design for mm-Wave Multi-User Massive MIMO Systems. - Majid H. Khoshafa; Steven D. Blostein (PACRIM, 2024)

RIS-Assisted Physical Layer Security in Emerging RF and Optical Wireless Communication Systems: A Comprehensive Survey. - Majid H. Khoshafa; Omar Maraqa; Jules Merlin Mouatcho Moualeu; Sylvester B. Aboagye; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed; Yasser Gadallah; Marco Di Renzo (CoRR, 2024)

Securing LPWANs: A Reconfigurable Intelligent Surface (RIS)-Assisted UAV Approach. - Majid H. Khoshafa; Telex M. N. Nkouatchah; Yasser Gadallah; Mohamed Hossam Ahmed (IEEE Wirel. Commun. Lett., 2024)

Aerial Reconfigurable Intelligent Surface-Assisted LPWANs for IoT: A Cross-Layer Analysis. - Majid H. Khoshafa; Yasser Gadallah; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed (IEEE Wirel. Commun. Lett., 2024)

Beyond Diagonal RIS-Aided Wireless Communications Systems: State-of-the-Art and Future Research Directions. - Omar Maraqa; Majid H. Khoshafa; Olutayo O. Oyerinde; Telex M. N. Nkouatchah (CoRR, 2025)

Max-Min Secrecy Rate and Secrecy Energy Efficiency Optimization for RIS-Aided VLC Systems: RSMA Versus NOMA. - Omar Maraqa; Sylvester B. Aboagye; Majid H. Khoshafa; Telex Magloire Nkouatchah Ngatched (CoRR, 2025)

RIS-Empowered Secured Space-Air-Ground Integrated Networks: Opportunities and Challenges. - Majid H. Khoshafa; Felipe Augusto Dutra Bueno; Telex M. N. Nkouatchah; Marco Di Renzo (IEEE Commun. Mag., 2025)

Aerial Reconfigurable Intelligent Surfaces-Enabled Secured Wireless Communications: Performance Analysis and Optimization. - Majid H. Khoshafa; Gamil A. Ahmed; Telex Magloire Nkouatchah Ngatched; Marco Di Renzo (IEEE Trans. Commun., 2025)

RIS-Assisted Physical Layer Security in Emerging RF and Optical Wireless Communications Systems: A Comprehensive Survey. - Majid H. Khoshafa; Omar Maraqa; Jules M. Moualeu; Sylvester Aboagye; Telex Magloire Nkouatchah Ngatched; Mohamed Hossam Ahmed; Yasser Gadallah; Marco Di Renzo (IEEE Commun. Surv. Tutorials, 2025)