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Intelligent reflecting surface (IRS) is a new and revolutionizing technology for achieving spectrum and energy efficient wireless networks. By leveraging massive low-cost passive elements that are able to reflect radio-frequency (RF)…

Information Theory · Computer Science 2019-11-12 Qingqing Wu , Rui Zhang

Intelligent reflecting surfaces (IRSs) are emerging as promising enablers for the next generation of wireless communication systems, because of their ability to customize favorable radio propagation environments. However, with the…

Information Theory · Computer Science 2021-11-25 Dongfang Xu , Xianghao Yu , Derrick Wing Kwan Ng , Robert Schober

We investigate the use of an intelligent reflecting surface (IRS) in a millimeter-wave (mmWave) vehicular communication network. An intelligent reflecting surface consists of passive elements, which can reflect the incoming signals with…

Signal Processing · Electrical Eng. & Systems 2020-11-09 Dilin Dampahalage , K. B. Shashika Manosha , Nandana Rajatheva , MattiLatva-aho

Intelligent reflecting surfaces (IRSs) have received considerable attention from the wireless communications research community recently. In particular, as low-cost passive devices, IRSs enable the control of the wireless propagation…

Information Theory · Computer Science 2019-04-30 Xianghao Yu , Dongfang Xu , Robert Schober

In this paper, we consider an intelligent reflecting surface (IRS)-aided single-user system where an IRS with discrete phase shifts is deployed to assist the uplink communication. A practical transmission protocol is proposed to execute…

Information Theory · Computer Science 2019-12-24 Changsheng You , Beixiong Zheng , Rui Zhang

Rotatable antenna (RA) enhances wireless coverage through directional gain steering, yet suffers from performance degradation under physical blockages. Intelligent reflecting surface (IRS) establishes reflective paths to bypass obstacles,…

Information Theory · Computer Science 2026-01-19 Guoying Zhang , Qingqing Wu , Ziyuan Zheng , Qiaoyan Peng , Yanze Zhu , Wen Chen , Penghui Huang

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 envisioned as a promising solution for controlling radio propagation environments in future wireless systems. In this paper, we propose a distributed intelligent reflecting surface (IRS) assisted…

Signal Processing · Electrical Eng. & Systems 2020-11-02 Yashuai Cao , Tiejun Lv , Wei Ni

As a low-cost and low-power-consumption passive reflector, intelligent reflecting surface (IRS) can make a significant rate improvement by building a programmable wireless environment. To improve the rate performance and coverage range of…

Information Theory · Computer Science 2022-03-29 Xuehui Wang , Feng Shu , Weiping Shi , Xiaopeng Liang , Rongen Dong , Jun Li , Jiangzhou Wang

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), which consists of a large number of tunable reflective elements, is capable of enhancing the wireless propagation environment in a cellular network by intelligently reflecting the electromagnetic waves…

Signal Processing · Electrical Eng. & Systems 2021-06-10 Tao Jiang , Hei Victor Cheng , Wei Yu

Intelligent reflecting surfaces (IRSs) are revolutionary enablers for next-generation wireless communication networks, with the ability to customize the radio propagation environment. To fully exploit the potential of IRS-assisted wireless…

Information Theory · Computer Science 2020-10-12 Yifan Ma , Yifei Shen , Xianghao Yu , Jun Zhang , S. H. Song , Khaled B. Letaief

Intelligent reflecting surface (IRS) has emerged as a promising technology to enhance the wireless communication network coverage and capacity by dynamically controlling the radio signal propagation environment. In contrast to the existing…

Information Theory · Computer Science 2022-07-06 Zhenyu Kang , Changsheng You , Rui Zhang

The intelligent reflecting surface (IRS) is emphasized as a controlled scattering cluster. To this end, scatterers and traveling paths of multipath components are classified to build a new channel model. Unlike the conventional modeling,…

Signal Processing · Electrical Eng. & Systems 2021-11-18 Musab Alayasra , Huseyin Arslan

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…

Information Theory · Computer Science 2024-05-07 Jintao Luo , Sixing Yin

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 proposes a new three-dimensional (3D) wireless passive relaying system enabled by aerial IRS (AIRS). Compared to the conventional terrestrial IRS, AIRS enjoys more deployment flexibility as well as wider-range signal reflection,…

Signal Processing · Electrical Eng. & Systems 2020-11-30 Haiquan Lu , Yong Zeng , Shi Jin , Rui Zhang

The concept of reconfiguring wireless propagation environments using intelligent reflecting surfaces (IRS)s has recently emerged, where an IRS comprises of a large number of passive reflecting elements that can smartly reflect the impinging…

Information Theory · Computer Science 2020-05-05 Qurrat-Ul-Ain Nadeem , Hibatallah Alwazani , Abla Kammoun , Anas Chaaban , Merouane Debbah , Mohamed-Slim Alouini

This paper proposes a novel relay-aided intelligent reconfigurable surface (IRS) architecture for future wireless communication systems. The proposed architecture, which consists of two side-by-side intelligent surfaces connected via a…

Information Theory · Computer Science 2020-06-12 Xiaoyan Ying , Umut Demirhan , Ahmed Alkhateeb

Compared to passive intelligent reflecting surface (IRS), active IRS is viewed as a more efficient promising technique to combat the double-fading impact in IRS-aided wireless network. In this paper, in order to boost the achievable rate of…

Signal Processing · Electrical Eng. & Systems 2023-05-16 Yeqing Lin , Feng Shu , Rongen Dong , Riqing Chen , Siling Feng , Weiping Shi , Jing Liu , Jiangzhou Wang