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Related papers: Intelligent Reflecting Surfaces for Enhanced NOMA-…

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In this study, we investigate the use of intelligent reflecting surfaces (IRSs) in multi-operator communication systems for 6G networks, focusing on sustainable and efficient resource management. This research is motivated by two critical…

Information Theory · Computer Science 2025-11-10 Hiroaki Hashida , Yuichi Kawamoto , Nei Kato

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

In this paper, an intelligent reflecting surface (IRS) is introduced to assist an unmanned aerial vehicle (UAV) communication system based on non-orthogonal multiple access (NOMA) for serving multiple ground users. We aim to minimize the…

Information Theory · Computer Science 2022-06-14 Yuanxin Cai , Zhiqiang Wei , Shaokang Hu , Chang Liu , Derrick Wing Kwan Ng , Jinhong Yuan

In this paper, we propose to exploit movable elements of intelligent reflecting surface (IRS) to enhance the overall performance of integrated sensing and communication (ISAC) systems. Firstly, focusing on a single-user scenario, we reveal…

Information Theory · Computer Science 2025-08-01 Xingyu Peng , Qin Tao , Yong Liang Guan , Xiaoming Chen

An intelligent reflecting surface (IRS) can greatly improve the channel quality over a frequency-flat channel, if it is configured to reflect the incident signal as a beam towards the receiver. However, the fundamental limitations of the…

Information Theory · Computer Science 2021-09-16 Emil Björnson

Intelligent reflective surface (IRS) technology is emerging as a promising performance enhancement technique for next-generation wireless networks. Hence, we investigate the physical layer security of the downlink in IRS-aided…

Signal Processing · Electrical Eng. & Systems 2020-11-09 Zhiqing Tang , Tianwei Hou , Yuanwei Liu , Jiankang Zhang , Lajos Hanzo

Reconfigurable intelligent surfaces (RISs) become promising for enhancing non-orthogonal multiple access (NOMA) systems, i.e., enhancing the channel quality and altering the SIC orders. Invoked by stochastic geometry methods, we investigate…

Information Theory · Computer Science 2021-03-04 Chao Zhang , Wenqiang Yi , Yuanwei Liu , Qiang Wang

Visible light communication (VLC) is a technology that complements radio frequency (RF) to fulfill the ever-increasing demand for wireless data traffic. The ubiquity of light-emitting diodes (LEDs), exploited as transmitters, increases the…

Signal Processing · Electrical Eng. & Systems 2025-05-16 Borja Genoves Guzman , Maximo Morales Cespedes , Victor P. Gil Jimenez , Ana Garcia Armada , Maite Brandt-Pearce

High-speed communication and accurate sensing are of vital importance for future transportation system. Integrated sensing and communication (ISAC) system has the advantages of high spectrum efficiency and low hardware cost, satisfying the…

Signal Processing · Electrical Eng. & Systems 2022-11-21 Zhiqing Wei , Xinyi Yang , Chunwei Meng , Xiaoyu Yang , Kaifeng Han , Chen Qiu , Huici Wu

This paper exploits the potential of reconfigurable intelligent surface (RIS) to improve radar sensing in a non-orthogonal multiple access (NOMA) empowered integrated sensing and communication (NOMA-ISAC) network. The objective is to…

Information Theory · Computer Science 2022-09-29 Jiakuo Zuo , Yuanwei Liu

Visible Light Communication (VLC) is a promising solution to address the growing demand for wireless data, leveraging the widespread use of light-emitting diodes (LEDs) as transmitters. However, its deployment is challenged by link…

Signal Processing · Electrical Eng. & Systems 2025-05-16 Borja Genoves Guzman , Maïté Brandt-Pearce

Intelligent Reflecting Surface (IRS) is envisioned to be a technical enabler for the sixth-generation (6G) wireless system. Its potential lies in delivering high performance while maintaining both power efficiency and cost-effectiveness.…

Information Theory · Computer Science 2024-05-17 Wei Jiang , Hans Schotten

This paper investigates intelligent reflecting surface (IRS) enabled non-line-of-sight (NLoS) wireless sensing, in which an IRS is deployed to assist an access point (AP) to sense a target in its NLoS region. It is assumed that the AP is…

Signal Processing · Electrical Eng. & Systems 2022-10-14 Xianxin Song , Jie Xu , Fan Liu , Tony Xiao Han , Yonina C. Eldar

This letter investigates physical layer security in intelligent reflecting surface (IRS)-aided visible light communication (VLC). Under the point source assumption, we first elaborate the system model in the scenario with multiple…

Information Theory · Computer Science 2022-01-04 Shiyuan Sun , Fang Yang , Jian Song , Zhu Han

Intelligent reflecting/refracting surface (IRS) is envisioned as a promising technology to reconfigure wireless propagation environment for enhancing the communication performance, by smartly controlling the signal reflection/refraction…

Information Theory · Computer Science 2023-10-18 Zixuan Huang , Lipeng Zhu , Rui Zhang

In this paper, we propose simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted non-orthogonal multiple access (NOMA) networks. The considered STAR-RIS utilizes the mode switching (MS) protocol to…

Information Theory · Computer Science 2023-09-20 Mahmoud Aldababsa , Aymen Khaleel , Ertugrul Basar

Rapidly increasing demand for high speed data is pushing 6G wireless networks to support larger link scales, lower latency, and higher spectral efficiency. Visible light communications (VLC) is a strong complement to radio frequency (RF)…

Signal Processing · Electrical Eng. & Systems 2025-10-24 Xuesong Wang

An intelligent reflecting surface (IRS), consisting of reconfigurable metamaterials, can be used to partially control the radio environment and thereby bring new features to wireless communications. Previous works on IRS have particularly…

Signal Processing · Electrical Eng. & Systems 2020-02-07 Özgecan Özdogan , Emil Björnson , Erik G. Larsson

Intelligent reflecting surface (IRS)-enabled backscatter communications can be enabled by an access point (AP) that splits its transmit signal into modulated and unmodulated parts. This letter integrates non-orthogonal multiple access…

Information Theory · Computer Science 2022-09-07 Azar Hakimi , Shayan Zargari , Chintha Tellambura , Sanjeewa Herath

This chapter is devoted to discussing the integration of intelligent reflecting surfaces (IRSs), or intelligent walls, in optical wireless communication (OWC) systems. IRS technology is a revolutionary concept that enables communication…

Signal Processing · Electrical Eng. & Systems 2023-04-11 Anil Yesilkaya , Hanaa Abumarshoud , Harald Haas