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Intelligent reflecting surfaces (IRSs), active and/or passive, can be densely deployed in complex environments to significantly enhance wireless network coverage for both wireless information transfer (WIT) and wireless power transfer…

Information Theory · Computer Science 2023-07-06 Min Fu , Weidong Mei , Rui Zhang

Intelligent reflecting surfaces (IRSs) have several prominent advantages, including improving the level of wireless communication security and privacy. In this work, we focus on the latter aspect and introduce a strategy to counteract the…

Networking and Internet Architecture · Computer Science 2024-02-23 Francesco Malandrino , Alessandro Nordio , Carla Fabiana Chiasserini

Simultaneous wireless information and power transfer (SWIPT) has been envisioned as a promising technology to support ubiquitous connectivity and reliable sustainability in Internet-of-Things (IoT) networks, which, however, generally…

Information Theory · Computer Science 2025-11-17 Yanze Zhu , Qingqing Wu , Xinrong Guan , Ziyuan Zheng , Honghao Wang , Wen Chen , Yang Liu , Yuan Guo

Intelligent reflecting surface (IRS) has recently received much attention from the research community due to its potential to achieve high spectral and power efficiency cost-effectively. In addition to traditional cellular networks, the use…

Information Theory · Computer Science 2023-03-17 Wei Jiang , Hans D. Schotten

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

The intelligent reflecting surface (IRS) technology has recently attracted a lot of interest in wireless communications research. An IRS consists of passive reflective elements capable of tuning the phase, amplitude, frequency and…

Signal Processing · Electrical Eng. & Systems 2022-06-06 Zahra Esmaeilbeig , Kumar Vijay Mishra , Mojtaba Soltanalian

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

This paper considers an intelligent reflecting surface (IRS) assisted multi-input multi-output (MIMO) power splitting (PS) based simultaneous wireless information and power transfer (SWIPT) system with multiple PS receivers (PSRs). The…

Information Theory · Computer Science 2021-06-01 Chen He , Xie Xie , Kun Yang , Z. Jane Wang

Intelligent reflecting surface (IRS) is a potential candidate for massive multiple-input multiple-output (MIMO) 2.0 technology due to its low cost, ease of deployment, energy efficiency and extended coverage. This chapter investigates the…

Signal Processing · Electrical Eng. & Systems 2026-02-24 Yashuai Cao , Hetong Wang , Tiejun Lv , Wei Ni

This paper investigates the information-theoretic energy efficiency of intelligent reflecting surface (IRS)-aided wireless communication systems, taking into account the statistical quality-of-service (QoS) constraints on delay violation…

Information Theory · Computer Science 2024-11-04 Wenhao Wang , Deli Qiao , Lei Yang , Yueying Zhan , Derrick Wing Kwan Ng

Intelligent reflecting surface (IRS) has drawn a lot of attention recently as a promising new solution to achieve high spectral and energy efficiency for future wireless networks. By utilizing massive low-cost passive reflecting elements,…

Information Theory · Computer Science 2022-10-17 Ming-Min Zhao , Qingqing Wu , Min-Jian Zhao , Rui Zhang

Intelligent reflecting surface (IRS) is a promising technology to support high performance wireless communication. By adaptively configuring the reflection amplitude and/or phase of each passive reflecting element on it, the IRS can reshape…

Information Theory · Computer Science 2020-04-07 Yitao Han , Shuowen Zhang , Lingjie Duan , Rui Zhang

Intelligent reflecting surfaces (IRS) have been proposed as a revolutionary technology owing to its capability of adaptively reconfiguring the propagation environment in a cost-effective and hardware-efficient fashion. While the application…

Signal Processing · Electrical Eng. & Systems 2022-01-25 Rang Liu , Ming Li , Qian Liu , A. Lee Swindlehurst , Qingqing Wu

An indoor robot navigation system is investigated, where an intelligent reflecting surface (IRS) is employed to enhance the connectivity between the access point (AP) and a mobile robotic user. The considered system is optimized for…

Signal Processing · Electrical Eng. & Systems 2020-09-25 Xidong Mu , Yuanwei Liu , Li Guo , Jiaru Lin , Robert Schober

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

This work considers the problem of energy efficiency maximization in a RIS-based communication link, subject to not only the conventional maximum power constraints, but also additional constraints on the maximum exposure to electromagnetic…

Optimization and Control · Mathematics 2022-07-20 Alessio Zappone , Marco Di Renzo

Intelligent reflecting surface (IRS) is a novel burgeoning concept, which possesses advantages in enhancing wireless communication and user localization, while maintaining low hardware cost and energy consumption. Herein, we establish an…

Information Theory · Computer Science 2021-03-02 Rui Wang , Zhe Xing , Erwu Liu

Intelligent reflecting surface (IRS) has emerged as a promising technique to enhance wireless communication performance cost effectively. The existing literature has mainly considered IRS being deployed near user terminals to improve their…

Information Theory · Computer Science 2022-05-27 Yuwei Huang , Weidong Mei , Rui Zhang

This paper proposes a hybrid-relaying scheme empowered by a self-sustainable intelligent reflecting surface (IRS) in a wireless powered communication network (WPCN), to simultaneously improve the performance of downlink energy transfer (ET)…

Signal Processing · Electrical Eng. & Systems 2020-10-01 Bin Lyu , Parisa Ramezani , Dinh Thai Hoang , Shimin Gong , Zhen Yang , Abbas Jamalipour

Besides improving communication performance, intelligent reflecting surfaces (IRSs) are also promising enablers for achieving larger sensing coverage and enhanced sensing quality. Nevertheless, in the absence of a direct path between the…

Information Theory · Computer Science 2022-11-08 Kaitao Meng , Qingqing Wu , Robert Schober , Wen Chen
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