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This chapter is devoted to discussing the integration of intelligent reflecting surfaces (IRSs), or intelligent walls, in optical wireless communication (OWC) systems. IRS technology is a revolutionary concept that enables communication…

信号处理 · 电气工程与系统科学 2023-04-11 Anil Yesilkaya , Hanaa Abumarshoud , Harald Haas

One of the main challenges facing optical wireless communication (OWC) systems is service disconnection in high blockage probability scenarios where users might lose the line of sight (LoS) connection with their corresponding access points…

系统与控制 · 电气工程与系统科学 2023-04-04 Ahrar N. Hamad , Ahmad Adnan Qidan , Taisir E. H. El-Gorashi , Jaafar M. H. Elmirghani

Intelligent reflecting surface (IRS) is an enabling technology to engineer the radio signal prorogation in wireless networks. By smartly tuning the signal reflection via a large number of low-cost passive reflecting elements, IRS is capable…

信息论 · 计算机科学 2020-07-08 Qingqing Wu , Shuowen Zhang , Beixiong Zheng , Changsheng You , Rui Zhang

Intelligent reflecting surfaces (IRSs) are a promising technology for enhancing coverage and spectral efficiency, both in the sub-6 GHz and the millimeter wave (mmWave) bands. Existing approaches to leverage the benefits of IRS involve the…

信息论 · 计算机科学 2023-07-03 L. Yashvanth , Chandra R. Murthy

The intelligent reflecting surface (IRS) alters the behavior of wireless media and, consequently, has potential to improve the performance and reliability of wireless systems such as communications and radar remote sensing. Recently,…

信号处理 · 电气工程与系统科学 2023-04-13 Ahmet M. Elbir , Kumar Vijay Mishra , M. R. Bhavani Shankar , Symeon Chatzinotas

The rapid development of sixth-generation (6G) wireless networks requires seamless integration of communication and sensing to support ubiquitous intelligence and real-time, high-reliability applications. Integrated sensing and…

信号处理 · 电气工程与系统科学 2025-11-17 Qingqing Wu , Qiaoyan Peng , Ziheng Zhang , Xiaodan Shao , Yang Liu , Yifan Jiang , Yapeng Zhao , Yanze Zhu , Yilong Chen , Zixiang Ren , Jie Xu , Wen Chen , Rui Zhang

Intelligent reflection surface (IRS) is emerging as a promising technique for future wireless communications. Considering its excellent capability in customizing the channel conditions via energy-focusing and energy-nulling, it is an ideal…

信息论 · 计算机科学 2021-08-31 Shihao Yan , Xiaobo Zhou , Derrick Wing Kwan Ng , Jinhong Yuan , Naofal Al-Dhahir

Intelligent reflecting surface (IRS) is a promising technology for achieving spectrum and energy efficient wireless networks cost-effectively. Most existing works on IRS have focused on exploiting IRS to enhance the performance of wireless…

信息论 · 计算机科学 2021-06-25 Qingqing Wu , Xinrong Guan , Rui Zhang

In this paper, we propose to utilize intelligent reflecting surfaces (IRSs) for enhancing the physical layer security of wireless communications systems. In particular, an IRS-assisted secure wireless system is considered, where a…

信息论 · 计算机科学 2020-02-26 Xianghao Yu , Dongfang Xu , Robert Schober

Optical wireless communication (OWC) is envisioned as one of the main enabling technologies of 6G networks, complementing radio frequency (RF) systems to provide high data rates. One of the crucial issues in indoor OWC is service…

系统与控制 · 电气工程与系统科学 2024-09-10 Ahrar N. Hamad , Ahmad Adnan Qidan , Taisir E. H. Elgorashi , Jaafar M. H. Elmirghani

Visible light communication (VLC) is an optical wireless communication technology that is considered a promising solution for high-speed indoor connectivity. Unlike the case in conventional radio-frequency wireless systems, the VLC channel…

信号处理 · 电气工程与系统科学 2021-01-18 Mohamed Amine Arfaoui , Ali Ghrayeb , Chadi Assi

Intelligent Reflecting Surfaces (IRS) are anticipated to serve as a key cornerstone of future wireless networks, providing an unmatched capability to deterministically shape electromagnetic wave propagation. Despite this potential, most…

网络与互联网体系结构 · 计算机科学 2025-12-02 Fatih E. Bilgen , A. Sila Okcu , O. Tansel Baydas , Ozgur B. Akan

Optical intelligent reflecting surface (OIRS) offers a new and effective approach to resolving the line-of-sight blockage issue in visible light communication (VLC) by enabling redirection of light to bypass obstacles, thereby dramatically…

信息论 · 计算机科学 2024-05-30 Shiyuan Sun , Fang Yang , Weidong Mei , Jian Song , Zhu Han , Rui Zhang

Free-space optical (FSO) systems are able to offer the high data-rate, secure, and cost-efficient communication links required for applications such as wireless front- and backhauling for 5G and 6G communication networks. Despite the…

信号处理 · 电气工程与系统科学 2021-05-28 Vahid Jamali , Hedieh Ajam , Marzieh Najafi , Bernhard Schmauss , Robert Schober , H. Vincent Poor

Intelligent reflecting surface (IRS) is an emerging technology that is able to significantly improve the performance of wireless communications, by smartly tuning signal reflections at a large number of passive reflecting elements. On the…

信号处理 · 电气工程与系统科学 2023-02-14 Xiaodan Shao , Changsheng You , Rui Zhang

The ever-increasing reliance on wireless communication and sensing has led to growing concerns over the vulnerability of sensitive information to unauthorized detection and interception. Traditional anti-detection methods are often…

信号处理 · 电气工程与系统科学 2024-04-23 Beixiong Zheng , Xue Xiong , Tiantian Ma , Jie Tang , Derrick Wing Kwan Ng , A. Lee Swindlehurst , Rui Zhang

To meet the growing demand for data traffic, spectrum-rich optical wireless communication (OWC) has emerged as a key technological driver for the development of 6G. The resonant beam communication (RBC) system, which employs spatially…

系统与控制 · 电气工程与系统科学 2024-08-16 Wen Fang , Wen Chen , Qingqing Wu , Xusheng Zhu , Qiong Wu , Nan Cheng

Intelligent reflecting surface (IRS) has been widely studied in recent years, it has emerged as a new technology which can reflect the incident signal by intelligently configuring the reflection elements, thus changing the signal…

信息论 · 计算机科学 2024-05-07 Jintao Luo , Sixing Yin

Intelligent reflecting surface (IRS) has emerged as a promising technique for wireless communication networks. By dynamically tuning the reflection amplitudes/phase shifts of a large number of passive elements, IRS enables flexible wireless…

信息论 · 计算机科学 2022-04-26 Weidong Mei , Beixiong Zheng , Changsheng You , Rui Zhang

Intelligent reflecting/refracting surface (IRS) is envisioned as a promising technology to reconfigure wireless propagation environment for enhancing the communication performance, by smartly controlling the signal reflection/refraction…

信息论 · 计算机科学 2023-10-18 Zixuan Huang , Lipeng Zhu , Rui Zhang
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