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Reconfigurable Intelligent Surfaces (RISs) are programmable metasurfaces that can adaptively steer received electromagnetic energy in desired directions by employing controllable phase shifting cells. Among other uses, an RIS can modify the…

Signal Processing · Electrical Eng. & Systems 2025-05-15 Ender Ayanoglu , Filippo Capolino , A. Lee Swindlehurst

The technology of reconfigurable intelligent surfaces (RIS) has been showing promising potential in a variety of applications relying on Beyond-5G networks. Reconfigurable intelligent surface (RIS) can indeed provide fine channel…

Signal Processing · Electrical Eng. & Systems 2023-03-28 Moustafa Rahal , Benoit Denis , Kamran Keykhosravi , Musa Furkan Keskin , Bernard Uguen , George C. Alexandropoulos , Henk Wymeersch

Reconfigurable intelligent surface (RIS) has recently gained significant interest as an emerging technology for future wireless networks thanks to its potential for improving the coverage probability in challenging propagation environments.…

Information Theory · Computer Science 2023-09-08 Trinh Van Chien , Lam Thanh Tu , Waqas Khalid , Heejung Yu , Symeon Chatzinotas , Marco Di Renzo

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

Reconfigurable intelligent surfaces (RIS) have drawn considerable attention recently due to their controllable scattering elements that are able to direct electromagnetic waves into desirable directions. Although RISs share some…

Information Theory · Computer Science 2021-04-08 Mohanad Obeed , Anas Chaaban

Many of the devices used in Internet-of-Things (IoT) applications are energy-limited, and thus supplying energy while maintaining seamless connectivity for IoT devices is of considerable importance. In this context, we propose a…

Signal Processing · Electrical Eng. & Systems 2021-08-09 Khoi Khac Nguyen , Antonino Masaracchia , Tan Do-Duy , H. Vincent Poor , Trung Q. Duong

As sixth-generation (6G) wireless communication networks evolve, privacy concerns are expected due to the transmission of vast amounts of security-sensitive private information. In this context, a reconfigurable intelligent surface (RIS)…

Networking and Internet Architecture · Computer Science 2023-12-06 JungSook Bae , Waqas Khalid , Anseok Lee , Heesoo Lee , Song Noh , Heejung Yu

Reconfigurable Intelligent Surfaces (RISs) are expected to play a crucial role in reaching the key performance indicators (KPIs) for future 6G networks. Their competitive edge over conventional technologies lies in their ability to control…

Networking and Internet Architecture · Computer Science 2023-03-03 Antonio Albanese , Francesco Devoti , Vincenzo Sciancalepore , Marco Di Renzo , Albert Banchs , Xavier Costa-Pérez

The reconfigurable intelligent surface (RIS) is a promising technology that is anticipated to enable high spectrum and energy efficiencies in future wireless communication networks. This paper investigates optimum location-based RIS…

Information Theory · Computer Science 2022-06-07 Yuting Fang , Saman Atapattu , Hazer Inaltekin , Jamie Evans

Drony, dzi\k{e}ki mo\.zliwo\'sci ich szybkiego rozmieszczenia w trudnym terenie, uwa\.zane s\k{a} za jeden z kluczowych element\'ow system\'ow bezprzewodowych 6G. Jednak w celu wykorzystania ich jako punkty dost\k{e}powe sieci konieczne…

Networking and Internet Architecture · Computer Science 2024-10-04 Salim Janji , Paweł Sroka , Adrian Kliks

Reconfigurable intelligent surfaces (RIS), recognized as a critical enabler for 6G networks, exhibit unprecedented capabilities in electromagnetic wave manipulation and wireless channel reconfiguration. By leveraging existing network…

Information Theory · Computer Science 2025-08-19 Wenjun Teng , Weicong Chen , Yiping Zuo , Wankai Tang , Shi Jin

Reconfigurable intelligent surface (RIS) is a promising technology for RF wireless power transfer (WPT) as it is capable of beamforming and beam focusing without using active and power-hungry components. In this paper, we propose a…

Signal Processing · Electrical Eng. & Systems 2024-10-28 Nguyen Minh Tran , Muhammad Miftahul Amri , Je Hyeon Park , Dong In Kim , Kae Won Choi

Users' desire for enhanced performance drive the inevitable technological progress on vertical applications in wireless communication systems. To meet these demands, researchers vigorously investigate potential 6G and beyond technologies…

Signal Processing · Electrical Eng. & Systems 2024-07-15 Emre Arslan , Ali Tugberk Dogukan , Fatih Kilinc , Ertugrul Basar

Intelligent surface (IS) is envisioned as a promising technology for the sixth-generation (6G) wireless networks, which can effectively reconfigure the wireless propagation environment via dynamically controllable signal…

Signal Processing · Electrical Eng. & Systems 2024-11-20 Yuwei Huang , Lipeng Zhu , Rui Zhang

Reconfigurable Intelligent Surface (RIS) technology has emerged as a transformative solution for enhancing satellite networks in next-generation wireless communication. The integration of RIS in satellite networks addresses critical…

Emerging Technologies · Computer Science 2025-02-25 Wali Ullah Khan , Eva Lagunas , Symeon Chatzinotas

Recently, reconfigurable intelligent surfaces (RIS) have attracted a lot of attention due to their capability of extending cell coverage by reflecting signals toward the receiver. In this letter, we analyze the coverage of a downlink…

Information Theory · Computer Science 2020-09-18 Shuhao Zeng , Hongliang Zhang , Boya Di , Zhu Han , Lingyang Song

Reconfigurable intelligent surfaces (RISs) have recently gained significant interest as an emerging technology for future wireless networks. This paper studies an RIS-assisted propagation environment, where a single-antenna source transmits…

Information Theory · Computer Science 2021-10-27 Trinh Van Chien , Lam Thanh Tu , Dinh-Hieu Tran , Hieu Van Nguyen , Symeon Chatzinotas , Marco Di Renzo , Björn Ottersten

Reconfigurable intelligent surfaces (RIS) enable smart wireless environments by dynamically controlling signal propagation to enhance communication and localization. Unmanned aerial vehicles (UAVs) can act as flying base stations and thus,…

Systems and Control · Electrical Eng. & Systems 2025-11-11 Anupam Mondal , Priyadarshi Mukherjee , Sasthi C. Ghosh

The massive number of antennas in extremely large aperture array (ELAA) systems shifts the propagation regime of signals in internet of things (IoT) communication systems towards near-field spherical wave propagation. We propose a…

Signal Processing · Electrical Eng. & Systems 2025-04-18 Quan Zhou , Jingjing Zhao , Kaiquan Cai , Yanbo Zhu

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