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相关论文: Reconfigurable Intelligent Surfaces to Enable Ener…

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Reconfigurable intelligent surfaces (RISs) are two dimensional (2D) metasurfaces which can intelligently manipulate electromagnetic waves by low-cost near passive reflecting elements. RIS is viewed as a potential key technology for the…

信号处理 · 电气工程与系统科学 2022-06-07 Jie Huang , Cheng-Xiang Wang , Yingzhuo Sun , Rui Feng , Jialing Huang , Bolun Guo , Zhimeng Zhong , Tie Jun Cui

Intelligent surfaces comprising of cost effective, nearly passive, and reconfigurable unit elements are lately gaining increasing interest due to their potential in enabling fully programmable wireless environments. They are envisioned to…

信息论 · 计算机科学 2022-05-26 George C. Alexandropoulos , Evangelos Vlachos

With the rapid development of artificial intelligence, robotics, and Internet of Things, multi-robot systems are progressively acquiring human-like environmental perception and understanding capabilities, empowering them to complete complex…

机器人学 · 计算机科学 2025-02-17 Wanli Ni , Ruyu Luo , Xinran Zhang , Peng Wang , Wen Wang , Hui Tian

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

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

Reconfigurable intelligent surface (RIS) is an emerging technique employing metasurface to reflect the signal from the source node to the destination node. By smartly reconfiguring the electromagnetic (EM) properties of the metasurface and…

信息论 · 计算机科学 2022-06-30 Qi Gu , Dan Wu , Xin Su , Hanning Wang , Jingyuan Cui , Yifei Yuan

Reconfigurable intelligent surfaces (RISs) or intelligent reflecting surfaces (IRSs), are regarded as one of the most promising and revolutionizing techniques for enhancing the spectrum and/or energy efficiency of wireless systems. These…

Reconfigurable intelligent surfaces (RISs), also known as intelligent reflecting surfaces (IRSs), or large intelligent surfaces (LISs), have received significant attention for their potential to enhance the capacity and coverage of wireless…

信号处理 · 电气工程与系统科学 2021-05-05 Yuanwei Liu , Xiao Liu , Xidong Mu , Tianwei Hou , Jiaqi Xu , Marco Di Renzo , Naofal Al-Dhahir

Reconfigurable intelligent surfaces (RISs), with the potential to realize a smart radio environment, have emerged as an energy-efficient and a cost-effective technology to support the services and demands foreseen for coming decades. By…

信息论 · 计算机科学 2021-07-13 Sarah Basharat , Syed Ali Hassan , Haris Pervaiz , Aamir Mahmood , Zhiguo Ding , Mikael Gidlund

Reconfigurable intelligent surfaces (RISs) are an emerging technology for enhancing the performance of wireless networks at a low and affordable cost, complexity, and power consumption. We introduce an algorithm for optimizing a…

信息论 · 计算机科学 2020-12-01 Xuewen Qian , Marco Di Renzo

Reconfigurable Intelligent Surfaces (RISs) are a novel form of ultra-low power devices that are capable to increase the communication data rates as well as the cell coverage in a cost- and energy-efficient way. This is attributed to their…

信号处理 · 电气工程与系统科学 2024-06-11 Ruiqi Liu , Shuang Zheng , Qingqing Wu , Yifan Jiang , Nan Zhang , Yuanwei Liu , Marco Di Renzo , and George C. Alexandropoulos

Reconfigurable Intelligent Surfaces (RIS) or Intelligent Reflecting Surfaces (IRS) are metasurfaces that can be deployed in various places in wireless environments to make these environments controllable and reconfigurable. In this paper,…

信息论 · 计算机科学 2020-01-22 S. Mohammad Razavizadeh , Tommy Svensson

Reconfigurable intelligent surfaces (RISs) are regarded as a promising emerging hardware technology to improve the spectrum and energy efficiency of wireless networks by artificially reconfiguring the propagation environment of…

信息论 · 计算机科学 2020-08-18 Xiaojun Yuan , Ying-Jun Angela Zhang , Yuanming Shi , Wenjing Yan , Hang Liu

In this paper, we investigate and analyze energy recycling for a reconfigurable intelligent surface (RIS)-aided wireless-powered communication network. As opposed to the existing works where the energy harvested by Internet of things (IoT)…

信息论 · 计算机科学 2022-09-28 Hao Xie , Bowen Gu , Dong Li , Zhi Lin , Yongjun Xu

We investigate reconfigurable intelligent surface (RIS)-assisted simultaneous wireless information and power transfer (SWIPT) Internet of Things (IoT) networks, where energy-limited IoT devices are overlaid with cellular information users…

信息论 · 计算机科学 2024-07-18 Mohammadali Mohammadi , Hien Quoc Ngo , Michail Matthaiou

Reconfigurable Intelligent Surfaces (RISs) are a promising technique for enhancing the performance of Next Generation (NextG) wireless communication systems in terms of both spectral and energy efficiency, as well as resource utilization.…

网络与互联网体系结构 · 计算机科学 2025-04-22 Maria Tsampazi , Tommaso Melodia

In this paper, we deploy a full-wave FDTD paradigm to investigate the effect of reconfigurable intelligent surface (RIS) -- switchable frequency-selective surfaces (FSS) -- on generic massive MIMO uplink channel's eigenspace structure. We…

应用物理 · 物理学 2019-11-12 Debdeep Sarkar , Said Mikki , Yahia Antar

Intelligent reflecting surface (IRS), which is capable to adjust propagation conditions by controlling phase shifts of the reflected waves that impinge on the surface, has been widely analyzed for enhancing the performance of wireless…

系统与控制 · 电气工程与系统科学 2021-06-29 Shuhang Zhang , Hongliang Zhang , Boya Di , Yunhua Tan , Marco Di Renzo , Zhu Han , H. Vincent Poor , Lingyang Song

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…

系统与控制 · 电气工程与系统科学 2024-02-13 Hamed Radpour , Markus Hofer , David Loschenbrand , Lukas Walter Mayer , Andreas Hofmann , Martin Schiefer , Thomas Zemen

To enhance wireless communication in IoT systems using reconfigurable intelligent surfaces (RISs), efficient control of programmable passive and active elements is essential. However, increasing RIS elements requires more microcontrollers,…

信息论 · 计算机科学 2025-02-14 Shakil Ahmed , Ahmed E. Kamal , Mohamed Y. Selim