English
Related papers

Related papers: Reconfigurable Intelligent Surfaces for THz: Hardw…

200 papers

Reconfigurable intelligent surface (RIS) is an important candidate technology for 6G. We provide an analysis of RIS-assisted MIMO communication in sparse channel typically found in the mmW or THz range. By exploring the sparse property, we…

Signal Processing · Electrical Eng. & Systems 2023-10-13 Chenxi Zhu

Integrated sensing and communication (ISAC) is emerging as a key enabler to address the growing spectrum congestion problem and satisfy increasing demands for ubiquitous sensing and communication. By sharing various resources and…

Signal Processing · Electrical Eng. & Systems 2022-06-20 Rang Liu , Ming Li , Honghao Luo , Qian Liu , A. Lee Swindlehurst

Reconfigurable Intelligent Surfaces (RISs) are envisioned to play a key role in future wireless communications, enabling programmable radio propagation environments. They are usually considered as nearly passive planar structures that…

Signal Processing · Electrical Eng. & Systems 2022-02-14 Haiyang Zhang , Nir Shlezinger , Idban Alamzadeh , George C. Alexandropoulos , Mohammadreza F. Imani , Yonina C. Eldar

This paper presents an analytical pathloss model for reconfigurable intelligent surface (RIS) assisted terahertz (THz) wireless systems. Specifically, the model accommodates both the THz link and the RIS particularities. Finally, we derive…

Signal Processing · Electrical Eng. & Systems 2021-02-18 Alexandros-Apostolos A. Boulogeorgos , Angeliki Alexiou

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

The search for physical-layer technologies that can play a key role in beyond-5G systems has started. One option is reconfigurable intelligent surfaces (RIS), which can collect wireless signals from a transmitter and passively beamform them…

Information Theory · Computer Science 2021-01-05 Emil Björnson , Özgecan Özdogan , Erik G. Larsson

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 (RISs) are recently gaining remarkable attention as a low-cost, hardware-efficient, and highly scalable technology capable of offering dynamic control of electro-magnetic wave propagation. Their…

Information Theory · Computer Science 2020-10-12 George C. Alexandropoulos , Sumudu Samarakoon , Mehdi Bennis , Merouane Debbah

The integration of tunability mechanisms in the metasurface design has unleashed a tremendous potential for wireless communications. In particular, reconfigurable intelligent surfaces (RISs) can manipulate the reflections of an incident…

Applied Physics · Physics 2025-04-10 Vasileios G. Ataloglou , George V. Eleftheriades

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

Reconfigurable Intelligent Surfaces (RISs) are considered one of the key disruptive technologies towards future 6G networks. RISs revolutionize the traditional wireless communication paradigm by controlling the wave propagation properties…

Networking and Internet Architecture · Computer Science 2022-01-19 Antonio Albanese , Francesco Devoti , Vincenzo Sciancalepore , Marco Di Renzo , Xavier Costa-Pérez

Reconfigurable intelligent surfaces (RIS) have emerged as a transformative technology for electromagnetic (EM) wave manipulation, offering unprecedented control over wave reflections compared to traditional metallic reflectors. By utilizing…

Signal Processing · Electrical Eng. & Systems 2025-06-11 Hossein Rezaei , Mehmet Emin Arslan , George Yammine , Niels Neumann , Norman Franchi

Reconfigurable intelligent surfaces (RISs) are widely considered to become an integral part of future wireless communication systems. Various methodologies exist to design such surfaces; however, most consider or require a very large number…

Optimization and Control · Mathematics 2023-09-01 Hans-Dieter Lang , Michel A. Nyffenegger , Heinz Mathis , Xingqi Zhang

In future cellular systems, wireless localization and sensing functions will be built-in for specific applications, e.g., navigation, transportation, and healthcare, and to support flexible and seamless connectivity. Driven by this trend,…

Information Theory · Computer Science 2022-01-26 Hongliang Zhang , Boya Di , Kaigui Bian , Zhu Han , H. Vincent Poor , Lingyang Song

Recently, significant research attention has been devoted to the study of reconfigurable intelligent surfaces (RISs), which are capable of reconfiguring the wireless propagation environment by exploiting the unique properties of…

Networking and Internet Architecture · Computer Science 2021-05-04 Xuelin Cao , Bo Yang , Chongwen Huang , Chau Yuen , Marco Di Renzo , Zhu Han , Dusit Niyato , H. Vincent Poor , Lajos Hanzo

Recently, the reconfigurable intelligent surface (RIS) technology has ushered in the prospect of control over the wireless propagation environment. By establishing alternative propagation paths for the transmitted signals, and by reflecting…

Signal Processing · Electrical Eng. & Systems 2025-11-18 Pedro H. C. de Souza , Luciano Mendes

Reconfigurable intelligent surface (RIS)-assisted communication appears as one of the potential enablers for sixth generation (6G) wireless networks by providing a new degree of freedom in the system design to telecom operators.…

Signal Processing · Electrical Eng. & Systems 2021-09-21 E. Basar , I. Yildirim , F. Kilinc

Hybrid Reconfigurable Intelligent Surfaces (HRISs) constitute a new paradigm of truly smart metasurfaces with the additional features of signal reception and processing, which have been primarily considered for channel estimation and…

Signal Processing · Electrical Eng. & Systems 2024-11-15 Ioannis Gavras , George C. Alexandropoulos

Quantum networks (QNs) supported by terahertz (THz) wireless links present a transformative alternative to fiber-based infrastructures, particularly in mobile and infrastructure-scarce environments. However, signal attenuation, molecular…

Quantum Physics · Physics 2025-10-29 Shakil Ahmed

Reconfigurable Intelligent Surfaces (RISs) are envisioned to play a key role in future wireless communications, enabling programmable radio propagation environments. They are usually considered as almost passive planar structures that…

Information Theory · Computer Science 2022-08-12 Haiyang Zhang , Nir Shlezinger , George C Alexandropoulos , Idban Alamzadeh , Mohammadreza F Imani , Yonina C Eldar