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Intelligent reflecting surface (IRS) can be densely deployed in complex environment to create cascaded line-of-sight (LoS) paths between multiple base stations (BSs) and users via tunable IRS reflections, thereby significantly enhancing the…

Information Theory · Computer Science 2023-04-07 Weidong Mei , Rui Zhang

Intelligent reflecting surface (IRS) is an emerging technique to enhance the wireless communication spectral efficiency with low hardware and energy cost. In this letter, we consider the integration of IRS to an orthogonal frequency…

Information Theory · Computer Science 2019-12-04 Yifei Yang , Shuowen Zhang , Rui Zhang

Intelligent reflecting surfaces (IRSs) were introduced to enhance the performance of wireless systems. However, from a cellular service provider's view, a concern with the use of an IRS is its effect on out-of-band (OOB) quality of service.…

Information Theory · Computer Science 2024-09-17 L. Yashvanth , Chandra R. Murthy

Intelligent reflecting surface (IRS) is envisioned as a revolutionary technology for future wireless communication systems since it can intelligently change radio environment and integrate it into wireless communication optimization.…

Signal Processing · Electrical Eng. & Systems 2021-01-05 Hongyu Li , Wenhao Cai , Yang Liu , Ming Li , Qian Liu , Qingqing Wu

Rotatable intelligent reflecting surfaces (IRSs) introduce a new degree of freedom (DoF) for shaping wireless propagation by adaptively adjusting the orientation of IRSs. This paper considers an angle-dependent reflection model in a…

Signal Processing · Electrical Eng. & Systems 2025-12-17 Qiaoyan Peng , Qingqing Wu , Guangji Chen , Wen Chen , Shanpu Shen , Shaodan Ma

Intelligent reflecting surface (IRS) and unmanned aerial vehicle (UAV) have emerged as two promising technologies to boost the performance of wireless communication networks, by proactively altering the wireless communication channels via…

Information Theory · Computer Science 2021-03-30 Changsheng You , Zhenyu Kang , Yong Zeng , Rui Zhang

In this paper, a novel intelligent reflecting surface (IRS)-assisted wireless powered communication network (WPCN) architecture is proposed for power-constrained Internet-of-Things (IoT) smart devices, where IRS is exploited to improve the…

Information Theory · Computer Science 2021-12-07 Zhendong Li , Wen Chen , Qingqing Wu , Huanqing Cao , Kunlun Wang , Jun Li

In this paper, the secure performance of multiuser multiple-input single-output wireless communications systems assisted by a multifunctional active intelligent reflection surface (IRS) is investigated. The active IRS can simultaneously…

Signal Processing · Electrical Eng. & Systems 2022-05-06 Shaokang Hu , Derrick Wing Kwan Ng , Jinhong Yuan

This paper studies an intelligent reflecting surface (IRS)-assisted integrated sensing and communication (ISAC) system, in which one IRS is deployed to not only assist the wireless communication from a multi-antenna base station (BS) to a…

Signal Processing · Electrical Eng. & Systems 2022-02-15 Xianxin Song , Ding Zhao , Haocheng Hua , Tony Xiao Han , Xun Yang , Jie Xu

Intelligent reflecting surface (IRS) is a promising technology being considered for future wireless communications due to its ability to control signal propagation. This paper considers the joint active and passive beamforming problem for…

Signal Processing · Electrical Eng. & Systems 2022-02-09 Fangzhou Wang , Hongbin Li , Jun Fang

This paper concentrates on the problem of associating an intelligent reflecting surface (IRS) to multiple users in a multiple-input single-output (MISO) downlink wireless communication network. The main objective of the paper is to maximize…

Signal Processing · Electrical Eng. & Systems 2024-10-10 Hamid Amiriara , Farid Ashtiani , Mahtab Mirmohseni , Masoumeh Nasiri-Kenari

Intelligent reflecting surface (IRS) is a promising technology for achieving high spectrum efficiency in future wireless networks by leveraging massive low-cost reflecting elements with each reflecting the incident signal with a proper…

Information Theory · Computer Science 2018-10-29 Qingqing Wu , Rui Zhang

Intelligent reflecting surfaces (IRSs) constitute a disruptive wireless communication technique capable of creating a controllable propagation environment. In this paper, we propose to invoke an IRS at the cell boundary of multiple cells to…

Signal Processing · Electrical Eng. & Systems 2020-04-27 Cunhua Pan , Hong Ren , Kezhi Wang , Wei Xu , Maged Elkashlan , Arumugam Nallanathan , Lajos Hanzo

Although the multi-antenna or so-called multiple-input multiple-output (MIMO) transmission has been the enabling technology for the past generations of radio-frequency (RF)-based wireless communication systems, its application to the…

Information Theory · Computer Science 2023-02-09 Shiyuan Sun , Weidong Mei , Fang Yang , Nan An , Jian Song , 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

We consider computation offloading for edge computing in a wireless network equipped with intelligent reflecting surfaces (IRSs). IRS is an emerging technology and has recently received great attention since they can improve the wireless…

Signal Processing · Electrical Eng. & Systems 2020-01-29 Yang Liu , Jun Zhao , Zehui Xiong , Dusit Niyato , Chau Yuen , Cunhua Pan , Binbin Huang

Integrating intelligent reflecting surface (IRS) and Rate-Splitting Multiple Access (RSMA) is an effective solution to improve the spectral/energy efficiency in next-generation (beyond 5G (B5G) and 6G) wireless networks. In this paper, we…

Signal Processing · Electrical Eng. & Systems 2021-06-09 Aditya Jolly , Sudip Biswas , Keshav Singh

The use of automotive radars is gaining popularity as a means to enhance a vehicle's sensing capabilities. However, these radars can suffer from interference caused by transmissions from other radars mounted on nearby vehicles. To address…

Signal Processing · Electrical Eng. & Systems 2024-04-26 Shree Prasad Maruthi , Karrthik G. K. , Vijaya Krishna A. , Mahbub Hassan , Jinhong Yuan

The intelligent reflecting surface (IRS) is a planar array with massive reconfigurable passive elements, which can align the reflecting signals at the receivers via controlling the phase shifts at each element independently. Since IRS can…

Signal Processing · Electrical Eng. & Systems 2020-10-22 Silei Wang , Qiang Li , Sissi Xiaoxiao Wu , Jingran Lin

In this paper, the feasibility of adopting an intelligent reflective surface (IRS) in a cell-free wireless communication system is studied. The received signal-to-noise ratio (SNR) for this IRS-enabled cell-free set-up is optimized by…

Signal Processing · Electrical Eng. & Systems 2021-09-28 Diluka Loku Galappaththige , Dhanushka Kudathanthirige , Gayan Amarasuriya