Reconfigurable Intelligent Surfaces: Architectures, Models, and Applications

Mojtaba Fallahzadeh; Mohammad Hossein Koohi Ghamsari; Alireza Mallahzadeh; Amirhossein Ghasemi; Gabriele Gradoni; Rahim Tafazolli

arXiv · 2610.07436

Reconfigurable Intelligent Surfaces: Architectures, Models, and Applications

Mojtaba Fallahzadeh·Mohammad Hossein Koohi Ghamsari·Alireza Mallahzadeh·Amirhossein Ghasemi·Gabriele Gradoni·Rahim Tafazolli

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Abstract

Reconfigurable Intelligent Surfaces (RIS), also known as programmable metasurfaces, have emerged as a promising technology for next-generation wireless communication systems by enabling programmable control over the propagation environment. Through dynamic manipulation of the phase, amplitude, and polarization of electromagnetic waves, RIS introduces new degrees of freedom for enhancing coverage, spectral efficiency, energy efficiency, and interference management. This article reviews recent advances in RIS-enabled wireless communications, focusing on RIS architectures, emerging design and analysis techniques, and their impact on system-level performance. Key challenges related to scalability, hardware non-idealities, channel modeling, and control overhead are discussed, along with promising solutions and future research directions toward practical RIS deployment in beyond-5G and 6G networks.

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Mojtaba Fallahzadeh, Mohammad Hossein Koohi Ghamsari, Alireza Mallahzadeh, Amirhossein Ghasemi, Gabriele Gradoni, Rahim Tafazolli. 2026-10-05. Reconfigurable Intelligent Surfaces: Architectures, Models, and Applications. https://arxiv.org/abs/2610.07436

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