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Intelligent reflecting surface (IRS) has been deemed as a transformative technology to achieve smart and reconfigurable environment for wireless communication. This letter studies a new IRS-aided communication system, where multiple IRSs…

Information Theory · Computer Science 2020-10-27 Weidong Mei , Rui Zhang

Intelligent reflecting surfaces (IRSs) are envisioned as a transformative method for enhancing the physical layer security of future communication networks. However, current IRS-assisted secure wireless system designs incur high time cost…

Signal Processing · Electrical Eng. & Systems 2025-01-23 Yifei Wu , Mehmet Emin Arslan , Niels Neumann , Wolfgang Gerstacker , Robert Schober

Intelligent reflecting surface (IRS) is a promising solution to build a programmable wireless environment for future communication systems. In practice, an IRS consists of massive low-cost elements, which can steer the incident signal in…

Signal Processing · Electrical Eng. & Systems 2019-05-31 Huayan Guo , Ying-Chang Liang , Jie Chen , Erik G. Larsson

Intelligent reflecting surface (IRS) has emerged as a key enabling technology to realize smart and reconfigurable radio environment for wireless communications, by digitally controlling the signal reflection via a large number of passive…

Information Theory · Computer Science 2022-02-02 Beixiong Zheng , Changsheng You , Weidong Mei , Rui Zhang

This paper studies a multiple intelligent reflecting surfaces (IRSs) collaborative localization system where multiple semi-passive IRSs are deployed in the network to locate one or more targets based on time-of-arrival. It is assumed that…

Information Theory · Computer Science 2024-06-18 Ziheng Zhang , Wen Chen , Qingqing Wu , Zhendong Li , Xusheng Zhu , Jingfeng Chen , Nan Cheng

As a recently proposed idea for future wireless systems, intelligent reflecting surface (IRS) can assist communications between entities which do not have high-quality direct channels in between. Specifically, an IRS comprises many low-cost…

Information Theory · Computer Science 2020-01-29 Huimei Han , Jun Zhao , Dusit Niyato , Marco Di Renzo , Quoc-Viet Pham

Intelligent reflecting surface (IRS) has recently been emerging as an enabler for smart radio environment in which passive antenna arrays can be used to actively tailor/control the radio propagation. With multiple IRSs being launched to…

Signal Processing · Electrical Eng. & Systems 2021-12-09 Tu V. Nguyen , Diep N. Nguyen

In this paper, intelligent reflecting surface (IRS) is introduced to enhance the network performance of cognitive radio (CR) systems. Specifically, we investigate robust beamforming design based on both bounded channel state information…

Signal Processing · Electrical Eng. & Systems 2024-01-08 Lei Zhang , Cunhua Pan , Yu Wang , Hong Ren , Kezhi Wang

Intelligent reflecting surface (IRS) is envisioned to be a new and revolutionizing technology for achieving spectrum and energy efficient wireless communication networks cost-effectively in the future. Specifically, an IRS consists of a…

Information Theory · Computer Science 2019-08-13 Qingqing Wu , Rui Zhang

In this paper, we investigate resource allocation algorithm design for intelligent reflecting surface (IRS)-assisted multiuser cognitive radio (CR) systems. In particular, an IRS is deployed to mitigate the interference caused by the…

Information Theory · Computer Science 2020-03-03 Dongfang Xu , Xianghao Yu , Robert Schober

Intelligent reflecting surface (IRS) has become a promising technology to aid next generation wireless communication systems. In this paper, we develop an alternating beamforming technique with a novel concept of IRS element allocation for…

Information Theory · Computer Science 2022-06-28 Hyesang Cho , Junil Choi

Intelligent reflecting surfaces (IRSs) have emerged as a transformative technology for wireless networks by improving coverage, capacity, and energy efficiency through intelligent manipulation of wireless propagation environments. This…

Signal Processing · Electrical Eng. & Systems 2025-03-06 Qingqing Wu , Guangji Chen , Qiaoyan Peng , Wen Chen , Yifei Yuan , Zhenqiao Cheng , Jianwu Dou , Zhiyong Zhao , Ping Li

Intelligent reflecting surface (IRS) can bring significant performance enhancement for wireless communication systems by reconfiguring wireless channels via passive signal reflection. However, such performance improvement generally relies…

Signal Processing · Electrical Eng. & Systems 2023-10-18 Ge Yan , Lipeng Zhu , Rui Zhang

Intelligent Reflecting Surface (IRS) has been a promising solution to enhance wireless networks both spectral-efficiently and energy-efficiently. This paper considers an IRS-assisted the Internet of Things network for massive connectivity.…

Signal Processing · Electrical Eng. & Systems 2019-11-28 Shuhao Xia , Yuanming Shi

Intelligent reflecting surface (IRS) has become a cost-effective solution for constructing a smart and adaptive radio environment. Most previous works on IRS have jointly designed the active and passive precoding based on perfectly or…

Information Theory · Computer Science 2024-09-24 Beixiong Zheng , Tiantian Ma , Jie Tang , Changsheng You , Shaoe Lin , Kai-Kit Wong

Intelligent reflecting surface (IRS) has recently emerged as a new solution to enhance wireless communication performance via passive signal reflection. In this letter, we unlock the potential of IRS controller in relaying information and…

Information Theory · Computer Science 2021-06-24 Beixiong Zheng , Rui Zhang

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…

Information Theory · Computer Science 2022-05-26 George C. Alexandropoulos , Evangelos Vlachos

This paper investigates the use of intelligent reflecting surfaces (IRS) to assist cellular communications and radar sensing operations in a communications and sensing setup. The IRS dynamically allocates reflecting elements to…

Signal Processing · Electrical Eng. & Systems 2025-10-24 Daniyal Munir , Atta Ullah , Danish Mehmood Mughal , Min Young Chung , Hans D. Schotten

Intelligent reflecting surface (IRS) is an emerging technology for future wireless communications including 5G and especially 6G. It consists of a large 2D array of (semi-)passive scattering elements that control the electromagnetic…

Signal Processing · Electrical Eng. & Systems 2021-04-21 Gilderlan T. de Araújo , André L. F. de Almeida , Rémy Boyer

This paper investigates a multi-intelligent reflecting surface (IRS) aided integrated sensing and communication (ISAC) system, where multiple IRSs are strategically deployed not only to assist the communication from a multi-antenna base…

Information Theory · Computer Science 2025-06-30 Guangji Chen , Qingqing Wu , Shihang Lu , Meng Hua , Wen Chen