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相关论文: RIS-Enabled Joint Near-Field 3D Localization and S…

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The integration of Reconfigurable Intelligent Surfaces (RISs) into wireless environments endows channels with programmability, and is expected to play a key role in future communication standards. To date, most RIS-related efforts focus on…

In this survey paper, we present an extensive review of the use of RIS in 6G radio localization, highlighting their pivotal role as a low-cost, energy-efficient technology that reshapes wireless communication and localization landscapes.…

信号处理 · 电气工程与系统科学 2025-02-05 Anum Umer , Ivo Müürsepp , Muhammad Mahtab Alam , Henk Wymeersch

Reconfigurable Intelligent Surfaces (RISs) offer a promising means of reshaping the wireless propagation environment, yet practical methods for configuring large passive arrays to achieve reliable signal equalization remain limited.…

信息论 · 计算机科学 2026-03-04 Gal Ben-Itzhak , Ender Ayanoglu

In millimeter-wave (mmWave) cellular systems, reconfigurable intelligent surfaces (RISs) are foreseeably deployed with a large number of reflecting elements to achieve high beamforming gains. The large-sized RIS will make radio links fall…

信息论 · 计算机科学 2023-12-20 Baojia Luo , Yili Deng , Miaomiao Dong , Zhongyi Huang , Xiang Chen , Wei Han , Bo Bai

Reconfigurable intelligent surface (RIS) is envisioned to be an essential component of the paradigm for beyond 5G networks as it can potentially provide similar or higher array gains with much lower hardware cost and energy consumption…

信息论 · 计算机科学 2020-07-09 Hang Liu , Xiaojun Yuan , Ying-Jun Angela Zhang

Reconfigurable intelligent surfaces (RISs) have recently received widespread attention in the field of wireless communication. An RIS can be controlled to reflect incident waves from the transmitter towards the receiver; a feature that is…

信息论 · 计算机科学 2021-09-15 Jiangfeng Hu , Haifan Yin , Emil Björnson

Reconfigurable intelligent surfaces (RISs) represent a promising candidate for sixth-generation (6G) wireless networks, as the RIS technology provides a new solution to control the propagation channel in order to improve the efficiency of a…

信息论 · 计算机科学 2022-08-15 Mohamad H. Dinan , Nemanja Stefan Perovic , Mark F. Flanagan

Reconfigurable intelligent surface (RIS) is a promising technology that can reshape the electromagnetic environment in wireless networks, offering various possibilities for enhancing wireless channels. Motivated by this, we investigate the…

信息论 · 计算机科学 2024-09-02 Shengguo Meng , Wankai Tang , Weicong Chen , Jifeng Lan , Qun Yan Zhou , Yu Han , Xiao Li , Shi Jin

Reconfigurable intelligent surface (RIS) is a promising technology for future millimeter-wave (mmWave) communication systems. However, its potential benefits of adopting RIS for high-precision positioning in mmWave systems are still less…

信号处理 · 电气工程与系统科学 2021-11-30 Yu Liu , Sheng Hong , Cunhua Pan , Yinlu Wang , Yijin Pan , Ming Chen

In the upcoming sixth generation (6G) of wireless communication systems, reconfigurable intelligent surfaces~(RISs) are regarded as one of the promising technological enablers, which can provide programmable signal propagation. Therefore,…

信号处理 · 电气工程与系统科学 2022-12-15 Hyowon Kim , Hui Chen , Musa Furkan Keskin , Yu Ge , Kamran Keykhosravi , George C. Alexandropoulos , Sunwoo Kim , Henk Wymeersch

Reconfigurable intelligent surface (RIS) is a promising candidate technology of the upcoming Sixth Generation (6G) communication system for its ability to provide unprecedented spectral and energy efficiency increment through passive…

信息论 · 计算机科学 2023-09-29 Haochen Li , Zhiwen Pan , Bin Wang , Nan Liu , Xiaohu You

Reconfigurable intelligent surfaces (RISs) are one of the most promising technological enablers of the next (6th) generation of wireless systems. In this paper, we introduce a novel use-case of the RIS technology in radio localization,…

信号处理 · 电气工程与系统科学 2022-02-24 Kamran Keykhosravi , Gonzalo Seco-Granados , George C. Alexandropoulos , Henk Wymeersch

Location information offered by external positioning systems, e.g., satellite navigation, can be used as prior information in the process of beam alignment and channel parameter estimation for reconfigurable intelligent surface (RIS)-aided…

信号处理 · 电气工程与系统科学 2021-03-30 Jiguang He , Henk Wymeersch , Markku Juntti

Reconfigurable intelligent surface (RIS) is an emerging technology to enhance wireless communication in terms of energy cost and system performance by equipping a considerable quantity of nearly passive reflecting elements. This study…

信息论 · 计算机科学 2021-03-17 Jun Zhang , Jie Liu , Shaodan Ma , Chao-Kai Wen , Shi Jin

Near-field communications present new opportunities over near-field channels, however, the spherical wavefront propagation makes near-field signal processing challenging. In this context, this paper proposes efficient near-field channel…

信息论 · 计算机科学 2023-04-04 Songjie Yang , Chenfei Xie , Wanting Lyu , Boyu Ning , Zhongpei Zhang , Chau Yuen

Reconfigurable intelligent surface (RIS) is a promising solution to deal with the blockage-sensitivity of millimeter wave band and reduce the high energy consumption caused by network densification. However, deploying large scale RISs may…

信息论 · 计算机科学 2024-02-12 Yining Xu , Sheng Zhou

The growing demand for high-speed, reliable wireless connectivity in 6G networks necessitates innovative approaches to overcome the limitations of traditional Radio Access Network (RAN). Reconfigurable Intelligent Surface (RIS) and…

网络与互联网体系结构 · 计算机科学 2024-11-12 Reza Aghazadeh Ayoubi , Marouan Mizmizi , Eugenio Moro , Ilario Filippini , Umberto Spagnolini

Retrieving range information in three-dimensional (3D) radio imaging is particularly challenging due to the limited communication bandwidth and pilot resources. To address this issue, we consider a reconfigurable intelligent surface…

信息论 · 计算机科学 2024-03-19 Yixuan Huang , Jie Yang , Chao-Kai Wen , Shi Jin

While Reconfigurable Intelligent Surfaces (RISs) constitute one of the most prominent enablers for the upcoming sixth Generation (6G) of wireless networks, the design of efficient RIS phase profiles remains a notorious challenge when large…

信号处理 · 电气工程与系统科学 2024-07-19 Kyriakos Stylianopoulos , Panagiotis Gavriilidis , George C. Alexandropoulos

Reconfigurable intelligent surface (RIS)-empowered communication is one of the promising 6G technologies that allows the conversion of the wireless channel into an intelligent transmit entity by manipulating the impinging waves using…

信息论 · 计算机科学 2020-09-01 I. Yildirim , A. Uyrus , E. Basar