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Intelligent reflecting surface (IRS) has emerged as a promising paradigm to improve the capacity and reliability of a wireless communication system by smartly reconfiguring the wireless propagation environment. To achieve the promising…

Signal Processing · Electrical Eng. & Systems 2021-01-12 Yi Wei , Ming-Min Zhao , Min-Jian Zhao , Yunlong Cai

Compared with traditional half-duplex wireless systems, the application of emerging full-duplex (FD) technology can potentially double the system capacity theoretically. However, conventional techniques for suppressing self-interference…

Information Theory · Computer Science 2023-06-27 Chi Qiu , Meng Hua , Qingqing Wu , Wen Chen , Shaodan Ma , Fen Hou , Derrick Wing Kwan Ng , A. Lee Swindlehurst

As a means to control wireless propagation environments, the use of emerging and novel intelligent reflecting surfaces (IRS) is envisioned to enhance and broaden many applications in future wireless networks. This paper is concerned with a…

Signal Processing · Electrical Eng. & Systems 2020-03-23 Dian-Wu Yue , Ha H. Nguyen , Yu Sun

Intelligent reflecting surfaces (IRSs) are a promising technology for enhancing coverage and spectral efficiency, both in the sub-6 GHz and the millimeter wave (mmWave) bands. Existing approaches to leverage the benefits of IRS involve the…

Information Theory · Computer Science 2023-07-03 L. Yashvanth , Chandra R. Murthy

The employment of intelligent reflecting surfaces (IRSs) is a potential and promising solution to increase the spectral and energy efficiency of wireless communication networks. Despite their many advantages, IRS-aided communications have…

Information Theory · Computer Science 2021-03-26 Constantinos Psomas , Ioannis Krikidis

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

In this paper, we focus on the coverage probability of a double-intelligent reflecting surface (IRS) assisted wireless network and study the impact of multiplicative beamforming gain and correlated Rayleigh fading. In particular, we obtain…

Information Theory · Computer Science 2021-10-19 Anastasios Papazafeiropoulos , Pandelis Kourtessis , Symeon Chatzinotas , John M. Senior

Recently, intelligent reflecting surface (IRS) and unmanned aerial vehicle (UAV) have been introduced into wireless communication systems to enhance the performance of air-ground transmission. To make a good balance between performance,…

Information Theory · Computer Science 2023-04-25 Rongen Dong , Hangjia He , Feng Shu , Qi Zhang , Riqing Chen , Shihao Yan , Jiangzhou Wang

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

Recently, the use of intelligent reflecting surface (IRS) has gained considerable attention in wireless communications. By intelligently adjusting the passive reflection angle, IRS is able to assist the base station (BS) to extend the…

Signal Processing · Electrical Eng. & Systems 2020-06-02 Mingjie Shao , Qiang Li , Wing-Kin Ma

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

In this paper, we investigate an intelligent reflecting surface (IRS)-assisted multi-user system, where the base station (BS) employs rotatable antennas (RAs) and the IRS can adjust the panel orientation.To alleviate the severe…

Information Theory · Computer Science 2026-05-25 Guoying Zhang , Qingqing Wu , Ziyuan Zheng , Qiaoyan Peng , Ailing Zheng , Yanze Zhu , Ying Gao , Wen Chen

We focus on the realistic maximization of the uplink minimum signal-to-interference-plus-noise ratio (SINR) of a general multiple-input single-output (MISO) system assisted by an intelligent reflecting surface (IRS) in the large system…

Information Theory · Computer Science 2021-07-07 Anastasios Papazafeiropoulos , Cunhua Pan , Ahmet Elbir , Van Nguyen , Pandelis Kourtessis , Symeon Chatzinotas

Beyond diagonal intelligent reflecting surface (BD-IRS) is a new promising IRS architecture for which the reflection matrix is not limited to the diagonal structure as for conventional IRS. In this paper, we study a BD-IRS aided uplink…

Information Theory · Computer Science 2025-06-25 Shuo Zheng , Shuowen Zhang

Intelligent reflecting surface (IRS) has been widely considered as one of the key enabling techniques for future wireless communication networks owing to its ability of dynamically controlling the phase shift of reflected electromagnetic…

Signal Processing · Electrical Eng. & Systems 2022-09-02 Wenhao Cai , Ming Li , Yang Liu , Qingqing Wu , Qian Liu

In this work, two problems associated with a downlink multi-user system are considered with the aid of intelligent reflecting surface (IRS): weighted sum-rate maximization and weighted minimal-rate maximization. For the first problem, a…

Information Theory · Computer Science 2022-01-25 Liyue Zhang , Qing Wang , Haozhi Wang , Peng Chen , Hua Chen , Wei Liu , Zhiqiang Wu

This paper investigates intelligent reflecting surface (IRS)-assisted multiple-input single-output (MISO) visible light communication (VLC) networks utilizing the rate-splitting multiple access (RSMA) scheme. {In these networks,} an…

Information Theory · Computer Science 2024-11-15 Yangbo Guo , Jianhui Fan , Ruichen Zhang , Baofang Chang , Derrick Wing Kwan Ng , Dusit Niyato , Dong In Kim

Intelligent reflecting surface (IRS) is an emerging key technology for the fifth-generation (5G) and beyond wireless communication systems to provide more robust and reliable communication links. In this paper, we propose a mixed dual-hop…

Networking and Internet Architecture · Computer Science 2021-11-19 Gyan Deep Verma , Aashish Mathur , Yun Ai , Michael Cheffena

Intelligent reflecting surface (IRS) is a proposing technology in 6G to enhance the performance of wireless networks by smartly reconfiguring the propagation environment with a large number of passive reflecting elements. However, current…

Information Theory · Computer Science 2020-02-17 Jinglian He , Kaiqiang Yu , Yuanming Shi

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