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This paper presents a fully automated, data-driven framework for the large-scale deployment of reconfigurable intelligent surfaces (RISs) in cellular networks. Leveraging physically consistent ray tracing and empirical data from a…

Information Theory · Computer Science 2025-10-14 Sina Beyraghi , Javad Shabanpour , Giovanni Geraci , Paul Almasan , Angel Lozano

Recent advances in the fabrication and experimentation of Reconfigurable Intelligent Surfaces (RISs) have motivated the concept of the smart radio environment, according to which the propagation of information-bearing waveforms in the…

Information Theory · Computer Science 2021-07-27 George C. Alexandropoulos , Nir Shlezinger , Philipp del Hougne

Reconfigurable intelligent surface (RIS)-empowered communication is being considered as an enabling technology for sixth generation (6G) wireless networks. The key idea of RIS-assisted communication is to enhance the capacity, coverage,…

Networking and Internet Architecture · Computer Science 2021-06-23 Mithun Mukherjee , Vikas Kumar , Mian Guo , Daniel Benevides da Costa , Ertugrul Basar , Zhiguo Ding

Terahertz (THz) communications have emerged as a promising candidate to support the heavy data traffic and exploding network capacity in the future 6G wireless networks. However, THz communications are facing many challenges for practical…

Information Theory · Computer Science 2021-08-24 Zhi Chen , Boyu Ning , Chong Han , Zhongbao Tian , Shaoqian Li

A reconfigurable intelligent surface (RIS) is a prospective wireless technology that enhances wireless channel quality. An RIS is often equipped with passive array of elements and provides cost and power-efficient solutions for coverage…

Information Theory · Computer Science 2024-03-20 Hyuckjin Choi , Ly V. Nguyen , Junil Choi , A. Lee Swindlehurst

Reconfigurable intelligent surface (RIS)-empowered communications represent exciting prospects as one of the promising technologies capable of meeting the requirements of the sixth generation networks such as low-latency, reliability, and…

Signal Processing · Electrical Eng. & Systems 2024-02-12 Sefa Kayraklık , Ibrahim Yildirim , Yarkın Gevez , Ertugrul Basar , Ali Görçin

Reconfigurable intelligent surface (RIS) is a new and revolutionary technology to achieve spectrum-, energy- and cost-efficient wireless networks. This paper studies the resource allocation for RIS-empowered device-to-device (D2D)…

Information Theory · Computer Science 2020-07-21 Gang Yang , Yating Liao , Ying-Chang Liang , Olav Tirkkonen

The growing demand for high-speed, reliable wireless connectivity in 6G networks necessitates innovative approaches to overcome the limitations of traditional Radio Access Network (RAN). Reconfigurable Intelligent Surface (RIS) and…

Networking and Internet Architecture · Computer Science 2024-11-12 Reza Aghazadeh Ayoubi , Marouan Mizmizi , Eugenio Moro , Ilario Filippini , Umberto Spagnolini

A reconfigurable intelligent surface (RIS) is a metamaterial that can be integrated into walls and influence the propagation of electromagnetic waves. This, typically passive radio frequency (RF) technology is emerging for indoor and…

Signal Processing · Electrical Eng. & Systems 2020-12-10 Aly Sabri Abdalla , Talha Faizur Rahman , Vuk Marojevic

Reconfigurable Intelligent Surfaces (RIS) have emerged as a key enabler for programmable wireless environments in future Beyond-5G (B5G) and 6G networks. In the meantime, Integrated Sensing and Communication (ISAC) and Physical-Layer…

Signal Processing · Electrical Eng. & Systems 2026-04-23 Wenqing Dai , Jan Herbst , Jan Petershans , Christoph Lipps , Hans D. Schotten

Reconfigurable Intelligent Surfaces (RISs) constitute a strong candidate physical-layer technology for the $6$-th Generation (6G) of wireless networks, offering new design degrees of freedom for efficiently addressing demanding performance…

Information Theory · Computer Science 2023-06-21 Konstantinos D. Katsanos , George C. Alexandropoulos

Reconfigurable intelligent surface (RIS) has emerged as a cost- and energy-efficient solution to enhance the wireless communication capacity. However, recent studies show that a very large surface is required for a RIS-assisted…

Signal Processing · Electrical Eng. & Systems 2021-03-09 Nhan Thanh Nguyen , Quang-Doanh Vu , Kyungchun Lee , Markku Juntti

5G radio positioning exploits information in both angle and delay, by virtue of increased bandwidth and large antenna arrays. When large arrays are embedded in surfaces, they can passively steer electromagnetic waves in preferred directions…

Signal Processing · Electrical Eng. & Systems 2020-08-27 Henk Wymeersch , Benoît Denis

The aerial-terrestrial communication system constitutes an efficient paradigm for supporting and complementing terrestrial communications. However, the benefits of such a system cannot be fully exploited, especially when the line-of-sight…

Networking and Internet Architecture · Computer Science 2021-04-15 Xuelin Cao , Bo Yang , Chongwen Huang , Chau Yuen , Marco Di Renzo , Dusit Niyato , Zhu Han

The reconfigurable intelligent surface (RIS) technology for metasurfaces is ushering in a new paradigm for wireless communication systems. It provides an accessible way for controlling the interaction between electromagnetic waves with the…

Signal Processing · Electrical Eng. & Systems 2026-01-21 P. H. C. de Souza , M. Khazaee , L. L. Mendes

Reconfigurable intelligent surface (RIS)-assisted communication appears as one of the potential enablers for sixth generation (6G) wireless networks by providing a new way to optimize the communication system performance. This paper aims to…

Signal Processing · Electrical Eng. & Systems 2020-09-01 E. Basar , I. Yildirim

The performance of wireless communication systems is fundamentally constrained by random and uncontrollable wireless channels. Recently, reconfigurable intelligent surfaces (RIS) has emerged as a promising solution to enhance wireless…

Signal Processing · Electrical Eng. & Systems 2023-12-29 Xiaohao Mo , Lin Gui , Kai Ying , Xichao Sang , Xiaqing Diao

A reconfigurable intelligent surface (RIS) is a planar structure that is engineered to dynamically control the electromagnetic waves. In wireless communications, RISs have recently emerged as a promising technology for realizing…

Information Theory · Computer Science 2022-07-13 Marco Di Renzo , Fadil H. Danufane , Sergei Tretyakov

Reconfigurable intelligent surfaces (RISs) are considered a promising technology for boosting the coverage and for enhancing the spectral efficiency of wireless systems, as well as for taming the wireless environment. The potential benefits…

Information Theory · Computer Science 2021-11-23 Bjorn Sihlbom , Marios I. Poulakis , Marco Di Renzo

Reconfigurable intelligent surface (RIS) is an emerging technique employing metasurface to reflect the signal from the source node to the destination node. By smartly reconfiguring the electromagnetic (EM) properties of the metasurface and…

Information Theory · Computer Science 2022-06-30 Qi Gu , Dan Wu , Xin Su , Hanning Wang , Jingyuan Cui , Yifei Yuan
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