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相关论文: Cooperative UAV-mounted RISs-assisted Energy-effic…

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This paper considers downlink of reconfigurable intelligent surface (RIS) assisted cooperative non-orthogonal multiple access (CNOMA) systems. Our objective is to minimize the total transmit power by jointly optimizing the active…

信号处理 · 电气工程与系统科学 2020-12-08 Jiakuo Zuo , Yuanwei Liu , Naofal Al-Dhahir

In this paper, we focus on the energy efficiency (EE) optimization and analysis of reconfigurable intelligent surface (RIS)-assisted multiuser downlink near-field communications. Specifically, we conduct a comprehensive study on several key…

信号处理 · 电气工程与系统科学 2025-05-26 Wei Wang , Xiaoyu Ou , Zhihan Ren , Waqas Bin Abbas , Shuping Dang , Angela Doufexi , Mark A. Beach

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…

The Reconfigurable Intelligent Surface (RIS) constitutes one of the prominent technologies for the next 6-th Generation (6G) of wireless communications. It is envisioned to enhance signal coverage in cases where obstacles block the direct…

信息论 · 计算机科学 2021-03-10 Kun Chen-Hu , George C. Alexandropoulos , Ana García Armada

In this work, we unveil the advantages of synergizing cooperative rate splitting (CRS) with user relaying and simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR RIS). Specifically, we propose a novel STAR…

信息论 · 计算机科学 2024-04-16 Kangchun Zhao , Yijie Mao , Yuanming Shi

This paper investigates reconfigurable intelligent surface (RIS)-assisted secure multiuser communication systems subject to hardware impairments (HIs). We jointly optimize the beamforming vectors at the base station (BS) and the phase…

信息论 · 计算机科学 2022-10-12 Zhangjie Peng , Ruisong Weng , Cunhua Pan , Gui Zhou , Marco Di Renzo , A. Lee Swindlehurst

The rotatable reconfigurable intelligent surface (RIS) can enhance mobile edge computing (MEC) performance by optimizing its orientation to improve the gain of received and transmitted signals. This correspondence investigates a rotatable…

网络与互联网体系结构 · 计算机科学 2025-03-24 Bin Li , Dongdong Yang , Lei Liu

Conventional multiple-input multiple-out (MIMO) technologies have encountered bottlenecks of significantly increasing spectrum efficiencies of wireless communications due to the low degrees of freedom in practical line-of-sight scenarios…

信号处理 · 电气工程与系统科学 2024-08-05 Jun Lan , Liping Liang , Wenchi Cheng , Wei Zhang

Unmanned aerial vehicles (UAVs) are envisioned to be extensively employed for assisting wireless communications in Internet of Things (IoT) applications. On the other hand, terahertz (THz) enabled intelligent reflecting surface (IRS) is…

信息论 · 计算机科学 2022-04-04 Milad Tatar Mamaghani , Yi Hong

In this paper, the intelligent reflecting surface (IRS)-aided unmanned aerial vehicle (UAV) communication system is studied, where the UAV is deployed to serve the user equipment (UE) with the assistance of multiple IRSs mounted on several…

信号处理 · 电气工程与系统科学 2022-08-31 Liang Wang , Kezhi Wang , Cunhua Pan , Nauman Aslam

Aiming at providing wireless communication systems with environment-perceptive capacity, emerging integrated sensing and communication (ISAC) technologies face multiple difficulties, especially in balancing the performance trade-off between…

信息论 · 计算机科学 2023-07-18 Xin Zhao , Heng Liu , Shiqi Gong , Xin Ju , Chengwen Xing , Nan Zhao

Energy efficiency (EE) is a challenging task in integrated sensing and communication (ISAC) systems, where high spectral efficiency and low energy consumption appear as conflicting requirements. Although passive reconfigurable intelligent…

信号处理 · 电气工程与系统科学 2024-09-23 Junjie Ye , Mohamed Rihan , Peichang Zhang , Lei Huang , Stefano Buzzi , Zhen Chen

Reconfigurable Intelligent Surfaces (RIS) are a new paradigm which, with judicious deployment and alignment, can enable more favorable propagation environments and better wireless network design. As such, they can offer a number of…

信息论 · 计算机科学 2022-12-05 Jiayu Mao , Aylin Yener

In this article, we propose new network architectures that integrate multi-functional reconfigurable intelligent surfaces (MF-RISs) into 6G networks to enhance both communication and sensing capabilities. Firstly, we elaborate how to…

信号处理 · 电气工程与系统科学 2025-05-21 Wanli Ni , Wen Wang , Ailing Zheng , Peng Wang , Changsheng You , Yonina C. Eldar , Dusit Niyato , Robert Schober

Unmanned aerial vehicle (UAV) holds immense potential in integrated sensing and communication (ISAC) systems for the Internet of Things (IoT). In this paper, we propose a UAV-aided ISAC framework and investigate three robust power…

系统与控制 · 电气工程与系统科学 2023-10-26 Junchang Sun , Shuai Ma , Ruixin Yang , Yang Tingting , Shiyin Li

Reconfigurable intelligent surface (RIS) is a promising candidate technology for the upcoming Sixth Generation (6G) communication system for its ability to manipulate the wireless communication environment by controlling the coefficients of…

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

This paper investigates the synergistic potential of reconfigurable intelligent surfaces (RIS) and non-orthogonal multiple access (NOMA) to enhance the energy efficiency and performance of next-generation wireless networks. We delve into…

信号处理 · 电气工程与系统科学 2025-06-23 Muhammad Umer , Muhammad Ahmed Mohsin , Aamir Mahmood , Haejoon Jung , Haris Pervaiz , Mikael Gidlund , Syed Ali Hassan

Reconfigurable Intelligent Surfaces (RIS) are emerging as a key technology for sixth-generation (6G) wireless networks, leveraging adjustable reflecting elements to dynamically control electromagnetic wave propagation and optimize wireless…

系统与控制 · 电气工程与系统科学 2024-11-20 Kevin Weinberger , David Müller , Martin Mönnigmann , Aydin Sezgin

Reconfigurable intelligent surfaces (RISs) assist in paving the way for the evolution of conventional vehicular networks to autonomous driving. Having said that, the 3rd Generation Partnership Project (3GPP) faces numerous open challenges…

信号处理 · 电气工程与系统科学 2022-03-08 Yuanbin Chen , Ying Wang , Jiayi Zhang , Ping Zhang , Lajos Hanzo

The rollout of the fifth-generation (5G) networks has raised some concerns about potential health effects from increased exposure to electromagnetic fields (EMF). To address these concerns, we design a novel EMF-aware architecture for…

信号处理 · 电气工程与系统科学 2024-12-10 Mariem Chemingui , Ahmed Elzanaty , Rahim Tafazolli
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