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相关论文: Fluid RIS (FRIS)-Assisted Index Modulation for 6G …

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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…

A potential candidate technology for the development of future 6G networks has been recognized as Reconfigurable Intelligent Surface (RIS). However, due to the variation in radio link quality, traditional passive RISs only accomplish a…

信号处理 · 电气工程与系统科学 2023-09-26 Rashed Hasan Ratul , Muhammad Iqbal , Tabinda Ashraf , Jen-Yi Pan , Yi-Han Wang , Shao-Yu Lien

Recently there has been a flurry of research on the use of reconfigurable intelligent surfaces (RIS) in wireless networks to create smart radio environments. In a smart radio environment, surfaces are capable of manipulating the propagation…

信号处理 · 电气工程与系统科学 2020-05-05 Mohamed A. ElMossallamy , Hongliang Zhang , Lingyang Song , Karim G. Seddik , Zhu Han , Geoffrey Ye Li

This paper investigates the impact of the recently proposed concept of fluid reconfigurable intelligent surfaces (FRIS) on covert communications. Specifically, we consider a communication scenario where a legitimate transmitter aims to…

Fluid reconfigurable intelligent surfaces (FRISs) have recently emerged as a promising paradigm for wireless communications, wherein the reflecting elements can dynamically select their effective radiating positions from a dense preset…

信号处理 · 电气工程与系统科学 2026-05-19 Amarilton L. Magalhães , André L. F. de Almeida , George C. Alexandropoulos

Owing to its flexible and intelligent electromagnetic signal manipulation, the technology of reconfigurable intelligent surfaces (RISs) has attracted widespread attention. However, the potential of current RISs can only be partly unlocked…

Fluid antenna system (FAS) represents the concept of treating antenna as a reconfigurable physical-layer resource to broaden system design and network optimization and inspire next-generation reconfigurable antennas. FAS can unleash new…

信号处理 · 电气工程与系统科学 2025-12-23 Tuo Wu , Kai-Kit Wong , Jie Tang , Junteng Yao , Baiyang Liu , Kin-Fai Tong , Chan-Byoung Chae , Matthew C. Valenti , Kwai-Man Luk

Reconfigurable intelligent surface (RIS) is a new paradigm that has great potential to achieve cost-effective, energy-efficient information modulation for wireless transmission, by the ability to change the reflection coefficients of the…

信号处理 · 电气工程与系统科学 2020-07-07 Wankai Tang , Jun Yan Dai , Ming Zheng Chen , Kai-Kit Wong , Xiao Li , Xinsheng Zhao , Shi Jin , Qiang Cheng , Tie Jun Cui

The reconfigurable intelligent surface (RIS) technology is a potential solution to enhance network capacity and coverage without significant investment in additional infrastructure in 6G networks. This work highlights the interest of the…

Wireless communications are nowadays shifting to higher operation frequencies with the aim to meet the ever-increasing demand for bandwidth. While reconfigurable intelligent surfaces (RISs) are usually envisioned to restore the…

信号处理 · 电气工程与系统科学 2024-05-02 Giorgos Stratidakis , Sotiris Droulias , Angeliki Alexiou

Reconfigurable Intelligent Surfaces (RISs) promise improved, secure and more efficient wireless communications. We propose and demonstrate how to exploit the diversity offered by RISs to generate and select easily differentiable radio maps…

信号处理 · 电气工程与系统科学 2020-10-08 Cam Ly Nguyen , Orestis Georgiou , Gabriele Gradoni

The future 6G of wireless communication networks will have to meet multiple requirements in increasingly demanding levels, either individually or in combinations in small groups. This trend has spurred recent research activities on…

信号处理 · 电气工程与系统科学 2020-06-22 George C. Alexandropoulos , Geoffroy Lerosey , Merouane Debbah , Mathias Fink

Fluid Reconfigurable Intelligent Surfaces (FRISs) are gaining momentum as an improved alternative over classical RIS. However, it remains unclear whether their performance gains can be entirely attributed to spatial flexibility, or instead…

Reconfigurable intelligent surface (RIS) is a type of wireless communication technology that uses a reconfigurable surface, such as a wall or building that is able to adjust its properties by an integrated optimization algorithm in order to…

应用物理 · 物理学 2023-09-25 Emanuel Colella , Luca Bastianelli , Franco Moglie , Valter Mariani Primiani

Reconfigurable intelligent surfaces (RISs) are considered as potential technologies for the upcoming sixth-generation (6G) wireless communication system. Various benefits brought by deploying one or multiple RISs include increased spectrum…

信号处理 · 电气工程与系统科学 2021-04-16 Jiguang He , Nhan Thanh Nguyen , Rafaela Schroeder , Visa Tapio , Joonas Kokkoniemi , Markku Juntti

As the wireless research community moves toward shaping the vision of sixth-generation (6G) networks, reconfigurable intelligent surfaces (RIS) have emerged as a promising technology for controlling the propagation environment. Although RIS…

信号处理 · 电气工程与系统科学 2025-06-25 Prasetyo Putranto , Anis Amazigh Hamza , Sameh Mabrouki , Nasrullah Armi , Iyad Dayoub

Reconfigurable intelligent surface (RIS)-aided near-field communications is investigated. First, the necessity of investigating RIS-aided near-field communications and the advantages brought about by the unique spherical-wave-based…

信息论 · 计算机科学 2024-03-05 Xidong Mu , Jiaqi Xu , Yuanwei Liu , Lajos Hanzo

Although reconfigurable intelligent surfaces (RISs) can improve the performance of wireless networks by smartly reconfiguring the radio environment, existing passive RISs face two key challenges, i.e., double-fading attenuation and…

信号处理 · 电气工程与系统科学 2023-10-05 Wen Wang , Wanli Ni , Hui Tian , Naofal Al-Dhahir

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.…

信号处理 · 电气工程与系统科学 2021-09-21 E. Basar , I. Yildirim , F. Kilinc

Reconfigurable intelligent surfaces (RISs) have emerged as one of the most studied topics in recent years, hailed as a transformative technology with the potential to revolutionize future wireless systems. While RISs are recognized for…

网络与互联网体系结构 · 计算机科学 2024-12-04 Ferdi Kara , Özlem Tuğfe Demir , Emil Björnson