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Related papers: Realization of Reconfigurable Intelligent Surfaces…

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In this paper, we investigate the potential of employing reconfigurable intelligent surface (RIS) in integrated sensing and communication (ISAC) systems. In particular, we consider an RIS-assisted ISAC system in which a multi-antenna base…

Signal Processing · Electrical Eng. & Systems 2023-01-27 Rang Liu , Ming Li , A. Lee Swindlehurst

Reconfigurable intelligent surfaces (RIS) have recently received significant attention as building blocks for smart radio environments and adaptable wireless channels. By altering the space- and time-varying electromagnetic (EM) properties,…

Applied Physics · Physics 2021-01-25 John A. Hodge , Kumar Vijay Mishra , Amir I. Zaghloul

This paper considers reconfigurable intelligent surface (RIS)-assisted point-to-point multiple-input multiple-output (MIMO) communication systems, where a transmitter communicates with a receiver through an RIS. Based on the main target of…

Information Theory · Computer Science 2022-07-19 Ha An Le , Trinh Van Chien , Van Duc Nguyen , Wan Choi

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

We consider transmit beamforming and reflection pattern design in reconfigurable intelligent surface (RIS)-assisted integrated sensing and communication (ISAC) systems to jointly precode communication symbols and radar waveforms. We treat…

Signal Processing · Electrical Eng. & Systems 2022-06-16 R. S. Prasobh Sankar , Sundeep Prabhakar Chepuri , Yonina C. Eldar

Reconfigurable intelligent surfaces (RISs) have attracted great attention as a potential beyond 5G technology. These surfaces consist of many passive elements of metamaterials whose impedance can be controllable to change the phase,…

Information Theory · Computer Science 2021-09-09 Özlem Tuğfe Demir , Emil Björnson

High-precision localization and environmental sensing are essential for a new wave of applications, ranging from industrial automation and autonomous systems to augmented reality and remote healthcare. Conventional wireless methods,…

Reconfigurable Intelligent Surfaces enable active control of wireless propagation channels, which is crucial for future 5G and 6G networks. This work presents a scalable RIS design operating at 3.6 GHz with both 1 bit and 3 bit phase…

Systems and Control · Electrical Eng. & Systems 2026-02-23 Markus Heinrichs , Aydin Sezgin , Rainer Kronberger

The integration of reconfigurable intelligent surfaces (RIS) into future wireless communication systems offers promising capabilities in dynamic environment shaping and spectrum efficiency. In this work, we present a consistent…

Signal Processing · Electrical Eng. & Systems 2026-05-26 Ivan Iudice , Giacinto Gelli , Donatella Darsena

Reconfigurable intelligent surfaces (RISs) are rapidly gaining prominence in the realm of fifth generation (5G)-Advanced, and predominantly, sixth generation (6G) mobile networks, offering a revolutionary approach to optimizing wireless…

Information Theory · Computer Science 2024-06-17 Ertugrul Basar , George C. Alexandropoulos , Yuanwei Liu , Qingqing Wu , Shi Jin , Chau Yuen , Octavia A. Dobre , Robert Schober

Recent considerations for reconfigurable intelligent surfaces (RISs) assume that RISs can convey information by reflection without the need of transmit radio frequency chains, which, however, is a challenging task. In this paper, we propose…

Information Theory · Computer Science 2020-08-07 Shaoe Lin , Beixiong Zheng , George C. Alexandropoulos , Miaowen Wen , Marco Di Renzo , Fangjiong Chen

With both the standardization and commercialization completed in an unforeseen pace for the 5th generation (5G) wireless network, researchers, engineers and executives from the academia and the industry have turned their sights on candidate…

Networking and Internet Architecture · Computer Science 2024-02-20 Ruiqi Liu , Qingqing Wu , Marco Di Renzo , Yifei Yuan

A wireless communication system is studied that operates in the presence of multiple reconfigurable intelligent surfaces (RISs). In particular, a multi-operator environment is considered where each operator utilizes an RIS to enhance its…

Information Theory · Computer Science 2024-03-04 Nikolaos I. Miridakis , Theodoros A. Tsiftsis , Panagiotis A. Karkazis , Helen C. Leligou , Petar Popovski

Metasurfaces, or Reconfigurable Intelligent Surfaces (RISs), have emerged as a transformative technology for next-generation wireless systems, enabling digitally controlled manipulation of electromagnetic wave propagation. By turning the…

Cryptography and Security · Computer Science 2025-11-19 Paul Staat , Christof Paar , Swarun Kumar

Reconfigurable intelligent surfaces (RISs) enable reliable low-latency millimeter wave (mmWave) communication links in cases of a blocked line-of-sight (LoS) between the base station (BS) and the user equipment (UE), i.e. a RIS mounted on a…

Systems and Control · Electrical Eng. & Systems 2024-02-13 Hamed Radpour , Markus Hofer , David Loschenbrand , Lukas Walter Mayer , Andreas Hofmann , Martin Schiefer , Thomas Zemen

In recent years, a brand-new technology, reconfigurable intelligent surface (RIS) has been widely studied for reconfiguring the wireless propagation environment. RIS is an artificial surface of electromagnetic material that is capable of…

Signal Processing · Electrical Eng. & Systems 2022-09-13 Rujing Xiong , Xuehui Dong , Tiebin Mi , Robert caiming Qiu

This letter investigates the performance of emerging wireless communication systems assisted by a fluid reconfigurable intelligent surface (FRIS). Unlike conventional reconfigurable intelligent surfaces (RISs), an FRIS consists of…

Reconfigurable intelligent surface (RIS), a recently introduced technology for future wireless com-munication systems, enhances the spectral and energy efficiency by intelligently adjusting the propaga-tion conditions between a base station…

Signal Processing · Electrical Eng. & Systems 2022-03-08 Huimei Han , Jun Zhao , Zehui Xiong , Dusit Niyato , Wenchao Zhai , Marco Di Renzo , Quoc-Viet Pham , Weidang Lu

This paper investigates an active reconfigurable intelligent surface (RIS)-aided mobile edge computing (MEC) system. Compared with passive RIS, the active RIS is equipped with active reflective amplifier, which can effectively circumvent…

Signal Processing · Electrical Eng. & Systems 2022-09-08 Zhangjie Peng , Ruisong Weng , Zhenkun Zhang , Cunhua Pan , Jiangzhou Wang

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