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Intelligent reflecting surfaces (IRSs) tune wireless environments to increase spectrum and energy efficiencies. In view of much recent attention to the IRS concept as a promising technology for 6G wireless communications, we present a…

Signal Processing · Electrical Eng. & Systems 2019-11-05 Jun Zhao

Intelligent reflecting surfaces (IRSs) are considered a promising technology that can smartly reconfigure the wireless environment to enhance the performance of future wireless networks. However, the deployment of IRSs still faces…

Networking and Internet Architecture · Computer Science 2022-11-08 Faisal Naeem , Georges Kaddoum , Saud Khan , Komal S. Khan

Intelligent reflecting surface (IRS) is a cost-effective solution for achieving high spectrum and energy efficiency in future wireless networks by leveraging massive low-cost passive elements that are able to reflect the signals with…

Information Theory · Computer Science 2020-01-03 Qingqing Wu , Rui Zhang

In this work, we showcase the potential benefit of employing optical intelligent reflecting surfaces (O-IRS) for improving safety message dissemination for vehicular visible light communication (V-VLC) systems particularly at the road…

Systems and Control · Electrical Eng. & Systems 2022-11-22 Tathagat Pal , Gurinder Singh , Vivek Ashok Bohara , Anand Srivastava

An intelligent reflecting surface (IRS) is invoked for enhancing the energy harvesting performance of a simultaneous wireless information and power transfer (SWIPT) aided system. Specifically, an IRS-assisted SWIPT system is considered,…

Signal Processing · Electrical Eng. & Systems 2020-02-19 Cunhua Pan , Hong Ren , Kezhi Wang , Maged Elkashlan , Arumugam Nallanathan , Jiangzhou Wang , Lajos Hanzo

This work examines the performance gain achieved by deploying an intelligent reflecting surface (IRS) in covert communications. To this end, we formulate the joint design of the transmit power and the IRS reflection coefficients by taking…

Information Theory · Computer Science 2022-01-12 Xiaobo Zhou , Shihao Yan , Qingqing Wu , Feng Shu , Derrick Wing Kwan Ng

Intelligent reflect surface (IRS) is a potential technology to build programmable wireless environment in future communication systems. In this paper, we consider an IRS-assisted multi-base station (multi-BS) multi-user millimeter wave…

Information Theory · Computer Science 2020-11-04 Dan Zhao , Hancheng Lu , Yazheng Wang , Huan Sun , Yongqiang Gui

The intelligent reflecting surface (IRS) is an emerging technique to extend the wireless coverage. In this letter, the performance of hybrid automatic repeat request (hybrid-ARQ) for an IRS-assisted system is analyzed. More specifically,…

Information Theory · Computer Science 2020-12-04 Y. Ai , M. Mohamed , L. Kong , A. Al-Samen , M. Cheffena

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…

Information Theory · Computer Science 2021-06-25 Qingqing Wu , Xinrong Guan , Rui Zhang

Intelligent reflecting surface (IRS) is envisioned to be a promising solution for designing spectral and energy efficient wireless systems. In this letter, we study a multi-IRS-assisted system under Rician fading where the phase shifts…

Information Theory · Computer Science 2019-09-17 Zijian Zhang , Ying Cui , Feng Yang , Lianghui Ding

Intelligent reflecting surface (IRS) has emerged as a cost-effective solution to enhance wireless communication performance via passive signal reflection. Existing works on IRS have mainly focused on investigating IRS's passive…

Information Theory · Computer Science 2022-07-19 Beixiong Zheng , Rui Zhang

This paper focuses on the fundamental problem of maximizing the achievable weighted sum rate (WSR) at information receivers (IRs) in an intelligent reflecting surface (IRS) assisted simultaneous wireless information and power transfer…

Signal Processing · Electrical Eng. & Systems 2023-03-02 Vaibhav Kumar , Anastasios Papazafeiropoulos , Muhammad Fainan Hanif , Le-Nam Tran , Mark F. Flanagan

Intelligent reflecting/refracting surface (IRS) has recently emerged as a promising solution to reconfigure wireless propagation environment for enhancing the communication performance. In this paper, we study a new IRS-aided high-mobility…

Information Theory · Computer Science 2021-12-14 Zixuan Huang , Beixiong Zheng , Rui Zhang

This paper unveils the importance of intelligent reflecting surface (IRS) in a wireless powered sensor network (WPSN). Specifically, a multi-antenna power station (PS) employs energy beamforming to provide wireless charging for multiple…

Signal Processing · Electrical Eng. & Systems 2021-03-22 Zheng Chu , Zhengyu Zhu , Miao Zhang , Fuhui Zhou , Li Zhen , Xueqian Fu , and Naofal Al-Dhahir

Intelligent reflecting surface (IRS) technology offers more feasible propagation paths for millimeter-wave (mmWave) communication systems to overcome blockage than existing technologies. In this paper, we consider a downlink wireless system…

Signal Processing · Electrical Eng. & Systems 2021-01-22 Yue Xiu , Yang Zhao , Yang Liu , Jun Zhao , Osman Yagan , Ning Wei

Intelligent reflecting surfaces (IRS) have become the subject of many current research efforts, as the ongoing wireless spectrum crunch has made the need to open higher frequency bands a priority. IRS are one of the alternatives proposed to…

Information Theory · Computer Science 2025-12-01 Alessandro Nordio , Alberto Tarable , Francisco J. Escribano

This paper studies the active intelligent reflecting surface (IRS)-enabled integrated sensing and communications (ISAC), in which an active IRS is deployed to assist the base station (BS) in serving multiple communication users (CUs) and…

Information Theory · Computer Science 2025-08-04 Yuan Fang , Xianxin Song , Huazhou Hou , Ziguo Zhong , Xianghao Yu , Jie Xu , Yongming Huang

Recently, as explosive growth of mobile data traffic, the performance of wireless communication systems requires to be enhanced significantly in future. Intelligent reflecting surface (IRS) can be used as a promising way to improve the…

Information Theory · Computer Science 2020-04-22 Yiming Liu , Erwu Liu , Rui Wang

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 been considered as a promising technology to alleviate the blockage effect and enhance coverage in millimeter wave (mmWave) communication. To explore the impact of IRS on the performance of mmWave…

Signal Processing · Electrical Eng. & Systems 2022-10-05 Renlong Wei , Qing Xue , Shaodan Ma , Yongjun Xu , Li Yan , Xuming Fang