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cs.IT2025★ 2 cited
Deep Complex-valued Neural-Network Modeling and Optimization of Stacked Intelligent Surfaces
Abdullah Zayat, Omran Abbas, Loic Markley +1
We propose a complex-valued neural-network (CV-NN) framework to optimally configure stacked intelligent surfaces (SIS) in next-generation multi-antenna systems. Unlike conventional…
cs.IT2023
Unit Cell Phase-Frequency Profile Optimization in RIS-Assisted Wide-Band OFDM Systems
Omran Abbas, Qurrat-Ul-Ain Nadeem, Loïc Markley +1
The reflection characteristics of a reconfigurable intelligent surface (RIS) depend on the phase response of the constituent unit cells, which is necessarily frequency dependent. T…