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相关论文: MALRIS: Malicious Hardware in RIS-Assisted Wireles…

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Wireless communication infrastructure is a cornerstone of modern digital society, yet it remains vulnerable to the persistent threat of wireless jamming. Attackers can easily create radio interference to overshadow legitimate signals,…

密码学与安全 · 计算机科学 2024-12-18 Philipp Mackensen , Paul Staat , Stefan Roth , Aydin Sezgin , Christof Paar , Veelasha Moonsamy

Physical layer security in reconfigurable intelligent surface (RIS)-assisted wireless systems can be improved through coordinated control of signal transmission and RIS configuration. In this work, the base station simultaneously transmits…

信号处理 · 电气工程与系统科学 2026-05-27 Mustafa Furkan Beker , Ahmet Muaz Aktas , Sefa Kayraklik , Sultangali Arzykulov

Reconfigurable intelligent surface (RIS)-assisted communication have recently attracted the attention of the wireless communication community as a potential candidate for the next $6$-th generation (6G) of wireless networks. Various studies…

信号处理 · 电气工程与系统科学 2022-05-18 Recep A. Tasci , Fatih Kilinc , Ertugrul Basar , George C. Alexandropoulos

While the robustness of rate-splitting multiple access (RSMA) to imperfect channel state information (CSI) is well-documented, its susceptibility to attacks launched with malicious reconfigurable intelligent surfaces (RISs) remains…

信号处理 · 电气工程与系统科学 2024-08-26 A. S. de Sena , A. Gomes , J. Kibiłda , N. H. Mahmood , L. A. DaSilva , M. Latva-aho

With the emergence of the internet of things (IoT) technology, wireless connectivity should be more ubiquitous than ever. In fact, the availability of wireless connection everywhere comes with security threats that, unfortunately, cannot be…

信号处理 · 电气工程与系统科学 2020-09-11 Abdullateef Almohamad , Anas M. Tahir , Ayman Al-Kababji , Haji M. Furqan , Tamer Khattab , Mazen O. Hasna , Huseyin Arslan

Reconfigurable intelligent surfaces (RIS) have been actively researched as a potential technique for future wireless communications, which intelligently ameliorate the signal propagation environment. In the conventional design, each RIS…

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…

In this paper, we consider an active reconfigurable intelligent surface (RIS) to assist the multiuser downlink transmission in the presence of practical hardware impairments (HWIs), including the HWIs at the transceivers and the phase noise…

信号处理 · 电气工程与系统科学 2024-02-19 Zhangjie Peng , Zhibo Zhang , Cunhua Pan , Marco Di Renzo , Octavia A. Dobre , Jiangzhou Wang

Reconfigurable intelligent surfaces (RISs) have attracted the attention of academia and industry circles because of their ability to control the electromagnetic characteristics of channel environments. However, it has been found that the…

信号处理 · 电气工程与系统科学 2022-08-02 Yajun Zhao , Xin Lv

Reconfigurable intelligent surfaces have emerged as a promising hardware platform for shaping wireless propagation environments at millimeter-wave (mm-Wave) frequencies and beyond. While many existing studies emphasize channel modeling and…

系统与控制 · 电气工程与系统科学 2026-02-27 Ruiqi Wang , Pinjun Zheng , Yiming Yang , Xiarui Su , Mohammad Vaseem , Anas Chaaban , Md. Jahangir Hossain , Tareq Y. Al-Naffouri , Atif Shamim

Reconfigurable Intelligent Surface (RIS) is a promising solution to reconfigure the wireless environment in a controllable way. To compensate for the double-fading attenuation in the RIS-aided link, a large number of passive reflecting…

信息论 · 计算机科学 2021-03-02 Ruizhe Long , Ying-Chang Liang , Yiyang Pei , Erik G. Larsson

Reconfigurable intelligent surface (RIS) has been anticipated to be a novel cost-effective technology to improve the performance of future wireless systems. In this paper, we investigate a practical RIS-aided multiple-input-multiple-output…

信息论 · 计算机科学 2023-03-23 Jintao Wang , Shiqi Gong , Qingqing Wu , Shaodan Ma

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…

信号处理 · 电气工程与系统科学 2026-01-21 P. H. C. de Souza , M. Khazaee , L. L. Mendes

Reconfigurable intelligent surface (RIS) is an emerging technology for wireless communications. In this paper, extensive system level simulations are conducted for analyzing the performance of multi-RIS and multi-base-station (BS)…

信息论 · 计算机科学 2025-02-11 Yifei Yuan , Yuhong Huang , Xin Su , Boyang Duan , Nan Hu , Marco Di Renzo

Reconfigurable Intelligent Surfaces (RIS) are planar structures connected to electronic circuitry, which can be employed to steer the electromagnetic signals in a controlled manner. Through this, the signal quality and the effective data…

信息论 · 计算机科学 2021-12-21 Long Kong , Steven Kisseleff , Symeon Chatzinotas , Björn Ottersten , Melike Erol-Kantarci

In traditional Reconfigurable Intelligent Surfaces (RIS) systems, the RIS is mounted on stationary structures like buildings, walls, or posts. They have shown promising results in enhancing the performance of wireless systems like capacity…

信号处理 · 电气工程与系统科学 2024-12-24 I. Zakir Ahmed , Hamid Sadjadpour

The prospects of using a reconfigurable intelligent surface (RIS) to aid wireless communication systems have recently received much attention. Among the different use cases, the most popular one is where each element of the RIS scatters the…

信号处理 · 电气工程与系统科学 2021-12-09 Andrea De Jesus Torres , Luca Sanguinetti , Emil Björnson

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…

信号处理 · 电气工程与系统科学 2020-12-10 Aly Sabri Abdalla , Talha Faizur Rahman , Vuk Marojevic

Reconfigurable intelligent surface (RIS) can effectively control the wavefront of the impinging signals and has emerged as a cost-effective promising solution to improve the spectrum and energy efficiency of wireless systems. Most existing…

信息论 · 计算机科学 2022-06-07 Yiming Liu , Erwu Liu , Rui Wang , Binyu Lu , Zhu Han

While reconfigurable intelligent surface (RIS) technology has been shown to provide numerous benefits to wireless systems, in the hands of an adversary such technology can also be used to disrupt communication links. This paper describes…

信号处理 · 电气工程与系统科学 2024-01-02 Haoyu Wang , Zhu Han , A. Lee Swindlehurst