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Recently, as explosive growth of mobile data traffic, the performance of wireless communication systems requires to be enhanced significantly in future. Intelligent reflecting surface (IRS) can be used as a promising way to improve the…

Information Theory · Computer Science 2020-04-22 Yiming Liu , Erwu Liu , Rui Wang

Wireless communications via intelligent reflecting surfaces (IRSs) has received considerable attention from both academia and industry. In particular, IRSs are able to create favorable wireless propagation environments with typically…

Information Theory · Computer Science 2020-01-31 Xianghao Yu , Dongfang Xu , Robert Schober

This paper considers intelligent reflecting surface (IRS)-aided simultaneous wireless information and power transfer (SWIPT) in a multi-user multiple-input single-output (MISO) interference channel (IFC), where multiple transmitters (Txs)…

Information Theory · Computer Science 2024-01-31 Ying Gao , Qingqing Wu , Wen Chen , Celimuge Wu , Derrick Wing Kwan Ng , Naofal Al-Dhahir

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

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

Intelligent reflecting surface (IRS) is an emerging technology that is able to significantly improve the performance of wireless communications, by smartly tuning signal reflections at a large number of passive reflecting elements. On the…

Signal Processing · Electrical Eng. & Systems 2023-02-14 Xiaodan Shao , Changsheng You , Rui Zhang

Although the fifth-generation (5G) technologies will significantly improve the spectrum and energy efficiency of today's wireless communication networks, their high complexity and hardware cost as well as increasingly more energy…

Information Theory · Computer Science 2019-09-02 Qingqing Wu , Rui Zhang

This paper proposes a novel dual-intelligent reflecting surface (IRS) aided interference-limited simultaneous wireless information and power transfer (SWIPT) system with independent power splitting (PS), where each receiving antenna applies…

Signal Processing · Electrical Eng. & Systems 2026-01-01 Chaoying Huang , Wen Chen , Qingqing Wu , Xusheng Zhu , Zhendong Li , Ying Wang , Jinhong Yuan

In cognitive radio (CR) communication systems, achieving high secondary user (SU) rate in the presence of strong cross-link interference with the primary user (PU) is challenging. In this letter, we exploit the emerging intelligent…

Information Theory · Computer Science 2020-03-10 Xinrong Guan , Qingqing Wu , Rui Zhang

The performance of wireless communication systems is fundamentally constrained by the random and uncontrollable wireless channel. By leveraging the recent advance in digitally-controlled metasurface, intelligent reflecting surface (IRS) has…

Information Theory · Computer Science 2022-04-06 Changsheng You , Beixiong Zheng , Weidong Mei , Rui Zhang

This letter investigates the joint active and passive beamforming optimization for intelligent reflecting surface (IRS) aided multiuser multiple-input multiple-output systems with the objective of maximizing the weighted sum-rate. We show…

Information Theory · Computer Science 2021-01-28 Xingyu Zhao , Tian Lin , Yu Zhu

This paper considers an intelligent reflecting sur-face (IRS)-aided simultaneous wireless information and power transfer (SWIPT) network, where multiple users decode data and harvest energy from the transmitted signal of a transmit-ter. The…

Information Theory · Computer Science 2021-03-24 Shayan Zargari , Ata Khalili , Qingqing Wu , Mohammad Robat Mili , Derrick Wing Kwan Ng

As an excellent aided communication tool, intelligent reflecting surface (IRS) can make a significant rate enhancement and coverage extension. In this paper, we present an investigation on beamforming in an IRS-aided directional modulation…

Signal Processing · Electrical Eng. & Systems 2022-09-30 Yeqing Lin , Rongen Dong , Peng Zhang , Feng Shu , Jiangzhou Wang

The idea of Integrated Sensing and Communication (ISAC) offers a promising solution to the problem of spectrum congestion in future wireless networks. This paper studies the integration of intelligent reflective surfaces (IRS) with ISAC…

Signal Processing · Electrical Eng. & Systems 2023-09-06 Mahmoud AlaaEldin , Emad Alsusa , Karim G. Seddik , Christos Masouros , Iman Valiulahi

Intelligent reflecting surface (IRS) technology offers more feasible propagation paths for millimeter-wave (mmWave) communication systems to overcome blockage than existing technologies. In this paper, we consider a downlink wireless system…

Signal Processing · Electrical Eng. & Systems 2021-01-22 Yue Xiu , Yang Zhao , Yang Liu , Jun Zhao , Osman Yagan , Ning Wei

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

Intelligent Reflecting Surface (IRS) has been recently proposed as a promising solution to enhance the spectral and energy efficiency of future wireless networks by tuning a massive number of low-cost passive reflecting elements and thereby…

Information Theory · Computer Science 2020-02-27 Jiangbin Lyu , Rui Zhang

In this paper, secure wireless information and power transfer with intelligent reflecting surface (IRS) is proposed for a multiple-input single-output (MISO) system. Under the secrecy rate (SR) and the reflecting phase shifts of IRS…

Signal Processing · Electrical Eng. & Systems 2019-11-05 Weiping Shi , Xiaobo Zhou , Linqiong Jia , Yongpeng Wu , Feng Shu , Jiangzhou Wang

This paper studies multi-active intelligent-reflecting-surface (IRS) cooperative sensing, in which multiple active IRSs are deployed in a distributed manner to help the base station (BS) provide multi-view sensing. We focus on the scenario…

Information Theory · Computer Science 2024-04-23 Yuan Fang , Xianghao Yu , Jie Xu

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
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