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Intelligent reflecting surface (IRS) is a new and disruptive technology to achieve spectrum- and energy-efficient as well as cost-efficient wireless networks. This paper considers an IRS-assisted downlink non-orthogonal-multiple-access…

Information Theory · Computer Science 2020-01-01 Gang Yang , Xinyue Xu , Ying-Chang Liang

Intelligent reflecting surface (IRS) is a new and revolutionizing technology for achieving spectrum and energy efficient wireless networks. By leveraging massive low-cost passive elements that are able to reflect radio-frequency (RF)…

Information Theory · Computer Science 2019-11-12 Qingqing Wu , Rui Zhang

Cognitive radio (CR) is an effective solution to improve the spectral efficiency (SE) of wireless communications by allowing the secondary users (SUs) to share spectrum with primary users (PUs). Meanwhile, intelligent reflecting surface…

Information Theory · Computer Science 2021-03-12 Weiheng Jiang , Yu Zhang , Jun Zhao , Zehui Xiong , Zhiguo Ding

Simultaneous wireless information and power transfer (SWIPT) and intelligent reflecting surface (IRS) are two promising techniques for providing enhanced wireless communication capability and sustainable energy supply to energy-constrained…

Signal Processing · Electrical Eng. & Systems 2020-09-10 Wei Sun , Qingyang Song , Lei Guo , Jun Zhao

This paper studies an intelligent reflecting surface (IRS)-aided multiple-input-multiple-output (MIMO) full-duplex (FD) wireless-powered communication network (WPCN), where a hybrid access point (HAP) operating in FD broadcasts energy…

Information Theory · Computer Science 2022-09-14 Meng Hua , Qingqing Wu

Intelligent reflecting surface (IRS) can effectively enhance the energy and spectral efficiency of wireless communication system through the use of a large number of lowcost passive reflecting elements. In this paper, we investigate…

Networking and Internet Architecture · Computer Science 2020-07-21 Yuan Zheng , Suzhi Bi , Ying-Jun Angela Zhang , Hui Wang

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

Intelligent reflecting surface (IRS) and rate-splitting multiple access (RSMA) technologies are at the forefront of enhancing spectrum and energy efficiency in the next generation multi-antenna communication systems. This paper explores a…

Signal Processing · Electrical Eng. & Systems 2024-06-06 Chunjie Wang , Xuhui Zhang , Huijun Xing , Liang Xue , Shuqiang Wang , Yanyan Shen , Bo Yang , Xinping Guan

This paper investigates robust and secure multiuser multiple-input single-output (MISO) downlink communications assisted by a self-sustainable intelligent reflection surface (IRS), which can simultaneously reflect and harvest energy from…

Information Theory · Computer Science 2021-08-05 Shaokang Hu , Zhiqiang Wei , Yuanxin Cai , Chang Liu , Derrick Wing Kwan Ng , Jinhong Yuan

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

As a low-cost and low-power-consumption passive reflector, intelligent reflecting surface (IRS) can make a significant rate improvement by building a programmable wireless environment. To improve the rate performance and coverage range of…

Information Theory · Computer Science 2022-03-29 Xuehui Wang , Feng Shu , Weiping Shi , Xiaopeng Liang , Rongen Dong , Jun Li , Jiangzhou Wang

Intelligent reflecting surface (IRS) has recently emerged as a new solution to enhance wireless communication performance via passive signal reflection. In this letter, we unlock the potential of IRS controller in relaying information and…

Information Theory · Computer Science 2021-06-24 Beixiong Zheng , Rui Zhang

Intelligent reflecting surface (IRS) has been regarded as a promising and revolutionary technology for future wireless communication systems owing to its capability of tailoring signal propagation environment in an…

Signal Processing · Electrical Eng. & Systems 2022-04-14 Wenhao Cai , Rang Liu , Ming Li , Yang Liu , Qingqing Wu , Qian Liu

In this paper, we study an intelligent reflecting surface (IRS)-assisted system where a multi-antenna base station (BS) serves a single-antenna user with the help of a multi-element IRS in the presence of interference generated by a…

Information Theory · Computer Science 2020-09-25 Yuhang Jia , Chencheng Ye , Ying Cui

This paper unveils the importance of intelligent reflecting surface (IRS) in a wireless powered sensor network (WPSN). Specifically, a multi-antenna power station (PS) employs energy beamforming to provide wireless charging for multiple…

Signal Processing · Electrical Eng. & Systems 2021-03-22 Zheng Chu , Zhengyu Zhu , Miao Zhang , Fuhui Zhou , Li Zhen , Xueqian Fu , and Naofal Al-Dhahir

This paper proposes a novel location information aided multiple intelligent reflecting surface (IRS) systems. Assuming imperfect user location information, the effective angles from the IRS to the users are estimated, which is then used to…

Information Theory · Computer Science 2020-08-24 Xiaoling Hu , Caijun Zhong , Yu Zhang , Xiaoming Chen , Zhaoyang Zhang

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) 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

This paper investigates intelligent reflecting surface (IRS)-aided multicell wireless networks, where an IRS is deployed to assist the joint processing coordinated multipoint (JP-CoMP) transmission from multiple base stations (BSs) to…

Information Theory · Computer Science 2020-12-01 Meng Hua , Qingqing Wu , Derrick Wing Kwan Ng , Jun Zhao , Luxi Yang

Intelligent reflecting surface (IRS) is regarded as a revolutionary paradigm that can reconfigure the wireless propagation environment for enhancing the desired signal and/or weakening the interference, and thus improving the quality of…

Information Theory · Computer Science 2023-12-19 Xintong Chen , Jiangbin Lyu , Liqun Fu
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