3 papers
eess.SP2026
Physics-Informed Uncertainty-Aware Beamforming for HAPS Massive MIMO under Imperfect CSI
Akram Y. Sarhan, Osamah A. Abdullah, Khalid T. Musri +1
High-altitude platform station (HAPS) massive multiple-input multiple-output (MIMO) systems are expected to support wide-area, low-latency, and energy-efficient connectivity in fut…
eess.SP2025
Adaptive Pinching Antenna Optimization via Meta-Learning for Physical-Layer Security in Dynamic Wireless Networks
Khalid T. Musri, Akram Y. Sarhan, Osamah A. Abdullah +1
This paper develops a gradient-based meta-learning framework for real-time control of waveguided pinching-antenna systems under user-location uncertainty and physical-layer securit…
cs.CR2019
An Approach to Identity Management in Clouds without Trusted Third Parties
Akram Sarhan, Leszek Lilien
The management of sensitive data, including identity management (IDM), is an important problem in cloud computing, fundamental for authentication and fine-grained service access co…