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Delay-Augmented Stacked Intelligent Surfaces: Potential, Challenges, and Opportunities
Hibatallah Alwazani, Omran Abbas, Loic Markley +1
Stacked intelligent surfaces (SIS)s have been proposed recently as an enabling technology for Holographic Multiple Input Multiple Output (HMIMO) and Ultra-massive MIMO (umMIMO) tec…
Enhancing Secret Key Generation in Block Fading Channels using Reconfigurable Intelligent Surfaces
Hibatallah Alwazani, Anas Chaaban
Physical layer security (PLS) is superior to classical cryptography techniques due to its notion of perfect secrecy and independence to an eavesdropper's computational power. One f…
Channel Estimation for Distributed Intelligent Reflecting Surfaces Assisted Multi-User MISO Systems
Hibatallah Alwazani, Qurrat-Ul-Ain Nadeem, Anas Chaaban
Intelligent reflecting surfaces (IRSs)-assisted wireless communication promises improved system performance, while posing new challenges in channel estimation (CE) due to the passi…