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Reconfigurable Intelligent Surfaces: Principles and Opportunities [article]

Yuanwei Liu, Xiao Liu, Xidong Mu, Tianwei Hou, Jiaqi Xu, Marco Di Renzo, Naofal Al-Dhahir
2021 arXiv   pre-print
Reconfigurable intelligent surfaces (RISs), also known as intelligent reflecting surfaces (IRSs), or large intelligent surfaces (LISs), have received significant attention for their potential to enhance  ...  the capacity and coverage of wireless networks by smartly reconfiguring the wireless propagation environment.  ...  Index Terms 6G, intelligent reflecting surface (IRS), machine learning, performance optimization, reconfigurable intelligent surface (RIS), wireless networks I.  ... 
arXiv:2007.03435v3 fatcat:pynhymbavfhgrmqnhzjndxnthq

Reconfigurable Intelligent Surfaces for Wireless Communications: Principles, Challenges, and Opportunities [article]

Mohamed A. ElMossallamy, Hongliang Zhang, Lingyang Song, Karim G. Seddik, Zhu Han, Geoffrey Ye Li
2020 arXiv   pre-print
We describe the working principles of reconfigurable intelligent surfaces (RIS) and elaborate on different candidate implementations using metasurfaces and reflectarrays.  ...  In this article, we provide a tutorial overview of reconfigurable intelligent surfaces (RIS) for wireless communications.  ...  In Section II, we introduce different implementations to realize reconfigurable intelligent surfaces.  ... 
arXiv:2005.00938v1 fatcat:hvhxtnhrjbhs7kk5h2w657k4gi

Wireless Communications Through Reconfigurable Intelligent Surfaces

Ertugrul Basar, Marco Di Renzo, Julien de Rosny, Merouane Debbah, Mohamed-Slim Alouini, Rui Zhang
2019 IEEE Access  
intelligent surfaces in 6G and beyond wireless networks.  ...  INDEX TERMS 6G, large intelligent surfaces, meta-surfaces, reconfigurable intelligent surfaces, smart reflect-arrays, software-defined surfaces, wireless communications, wireless networks.  ...  RECONFIGURABLE INTELLIGENT SURFACES: HOW DO THEY WORK?  ... 
doi:10.1109/access.2019.2935192 fatcat:6pjbpzbisnduxfykkelv42suhi

Wireless Communications Through Reconfigurable Intelligent Surfaces [article]

Ertugrul Basar, Marco Di Renzo, Julien de Rosny, Merouane Debbah, Mohamed-Slim Alouini, Rui Zhang
2019 arXiv   pre-print
intelligent surfaces in 6G and beyond wireless networks.  ...  The recent advent of reconfigurable intelligent surfaces in wireless communications enables, on the other hand, network operators to control the scattering, reflection, and refraction characteristics of  ...  RECONFIGURABLE INTELLIGENT SURFACES: HOW DOTHEY WORK? Fig. 4 . 4 Reconfigurable reflect-arrays with tunable resonators.  ... 
arXiv:1906.09490v2 fatcat:g37e2e7lnbgz7lhubkb3xk3wnu

Reconfigurable Intelligent Surface Aided Wireless Localization [article]

Yiming Liu, Erwu Liu, Rui Wang
2020 arXiv   pre-print
In this paper, the reconfigurable intelligent surface (RIS) is introduced into the system to make the positioning more accurate.  ...  The advantages of millimeter-wave and large antenna arrays technologies for accurate wireless localization received extensive attentions recently.  ...  The derivations of Eqs. (45) -(47) follow the similar procedures and here we omit them due to space limitation. From the above, we complete the derivations of Eqs. (44) -(47) in Section IV.  ... 
arXiv:2009.07459v1 fatcat:fkcrlwcgv5fjpjw4lpqxwbeeca

Guest Editorial: Reconfigurable Intelligent Surfaces: Design and Implementation

Vincenzo Sciancalepore, Ertugrul Basar, Naofal Al-Dhahir, Ying-Chang Liang
2021 IEEE Communications Magazine  
The first article, "Reconfigurable Intelligent Surfaces for 6G Systems: Principles, Applications, and Research Directions" by C.  ...  The article entitled "AI-Assisted MAC for Reconfi gurable Intelligent Surface-Aided Wireless Networks: Challenges and Opportunities" by X.  ...  The first article, "Reconfigurable Intelligent Surfaces for 6G Systems: Principles, Applications, and Research Directions" by C.  ... 
doi:10.1109/mcom.2021.9475157 fatcat:bj2jp7ezejb6vkxzztqcpksnnq

Wave-Controlled Metasurface-Based Reconfigurable Intelligent Surfaces [article]

Ender Ayanoglu, Filippo Capolino, A. Lee Swindlehurst
2022 arXiv   pre-print
Reconfigurable Intelligent Surfaces (RISs) are programmable metasurfaces that can adaptively steer received electromagnetic energy in desired directions by employing controllable phase shifting cells.  ...  We specify this wave-controlled RIS architecture in detail and discuss signal processing and machine learning methods that exploit it in both point-to-point and multicell MIMO systems.  ...  The authors are with the Center for Pervasive Communications and Computing, Department of Electrical Engineering and Computer Science, University of California, Irvine, CA 92697-2625, USA.  ... 
arXiv:2202.03273v1 fatcat:koj2zdye3zhpvp7wxdtrjushqq

Radio Localization and Mapping with Reconfigurable Intelligent Surfaces [article]

Henk Wymeersch, Jiguang He, Benoît Denis, Antonio Clemente, Markku Juntti
2020 arXiv   pre-print
Reconfigurable intelligent surfaces (RISs) are seen as a transformative technology that can control the physical propagation environment in which they are embedded by passively reflecting EM waves in preferred  ...  5G radio at millimeter wave (mmWave) and beyond 5G concepts at 0.1-1 THz can exploit angle and delay measurements for localization, by the virtue of increased bandwidth and large antenna arrays but are  ...  Reconfigurable intelligent surfaces (RISs) represent a breakthrough technology whereby surfaces are endowed with the capability to actively modify the impinging electromagnetic wave [2] , as visualized  ... 
arXiv:1912.09401v2 fatcat:obzbimd34na5bavqzf6aiksdcu

Applications and challenges of Reconfigurable Intelligent Surface for 6G networks (Original published in Chinese) [article]

Yajun Zhao, Mengnan Jian
2021 arXiv   pre-print
Reconfigurable intelligent surface has attracted the attention of academia and industry as soon as it appears because it can flexibly manipulate the electromagnetic characteristics of wireless channel.  ...  Especially in the past one or two years, RIS has been developing rapidly in academic research and industry promotion and is one of the key candidate technologies for 5G-Advanced and 6G networks.  ...  In recent years, reconfigurable intelligent surface (RIS) has attracted extensive attention in the academic and industry since it can flexibly manipulate the electromagnetic characteristics in the channel  ... 
arXiv:2108.13164v1 fatcat:bzzsd4lhmzdgthp7lren2boywi

Reconfigurable Intelligent Surfaces for Future Wireless Networks: A Channel Modeling Perspective [article]

E. Basar, I. Yildirim
2021 arXiv   pre-print
While the researchers have set their sights on future wireless networks of 2030, communications through reconfigurable intelligent surfaces (RISs) appears as one of the potential enabling technologies  ...  and communication environments.  ...  RECONFIGURABLE INTELLIGENT SURFACES: HOW DO THEY WORK?  ... 
arXiv:2008.01448v4 fatcat:q2wei5j6njh2tcjmqj37wk6wwe

Reconfigurable-Intelligent-Surface Empowered Wireless Communications: Challenges and Opportunities [article]

Xiaojun Yuan, Ying-Jun Angela Zhang, Yuanming Shi, Wenjing Yan, Hang Liu
2020 arXiv   pre-print
Reconfigurable intelligent surfaces (RISs) are regarded as a promising emerging hardware technology to improve the spectrum and energy efficiency of wireless networks by artificially reconfiguring the  ...  Furthermore, we discuss other promising research directions of RISs, including edge intelligence and physical-layer security.  ...  Reconfigurable intelligent surfaces (RISs), a.k.a., large intelligent metasurfaces (LIMs) [2] and intelligent reflecting surfaces (IRSs) [3] , have been envisioned to reduce the energy consumption and  ... 
arXiv:2001.00364v3 fatcat:r46wtlmeibdzrj4xc2iqobctia

Survey on reconfigurable intelligent surfaces below 10 GHz

Visa Tapio, Ibrahim Hemadeh, Alain Mourad, Arman Shojaeifard, Markku Juntti
2021 EURASIP Journal on Wireless Communications and Networking  
AbstractReconfigurable intelligent surface (RIS) is a programmable structure that can be used to control the propagation of electromagnetic waves by changing the electric and magnetic properties of the  ...  By placing these surfaces in an environment, the properties of radio channels can be controlled. This opens up new opportunities to improve the performance of wireless systems.  ...  Author contributions All authors have contributed to the literature search and to the writing of the survey. All authors read and approved the final manuscript.  ... 
doi:10.1186/s13638-021-02048-5 fatcat:gq5v6ktlqfdqlbpjmuvkzzj7ma

Reconfigurable Intelligent Surfaces in Challenging Environments: Underwater, Underground, Industrial and Disaster [article]

Steven Kisseleff, Symeon Chatzinotas, Björn Ottersten
2021 arXiv   pre-print
Reconfigurable intelligent surfaces (RISs) have been introduced to improve the signal propagation characteristics by focusing the signal power in the preferred direction, thus making the communication  ...  Surprisingly, the benefits of RIS for wireless networking in underwater and underground medium as well as in industrial and disaster environments have not been addressed yet.  ...  Furthermore, the idea of controllable communication environment has been proposed in various works under different names, such as Intelligent Reflective Surface (IRS), Large Intelligent Surface (LIS),  ... 
arXiv:2011.12110v2 fatcat:n5rhnwhvuvbvxd5blsb55b7xfq

Reconfigurable intelligent surface-aided wireless communications: An overview

Muhammad Zain Siddiqi, Talha Mir
2022 Intelligent and Converged Networks  
The reconfigurable intelligent surface (RIS) is an emerging technology, which will hopefully bring a new revolution in wireless communications.  ...  Taking advantage of its working principle, RIS has been deployed in various practical scenarios.  ...  Introduction The reconfigurable intelligent surface (RIS), also named as intelligent reflecting surface (IRS), large intelligent surface (LIS), programmable metasurface, etc., is an emerging technology  ... 
doi:10.23919/icn.2022.0007 fatcat:feeoq2xywzfx3is4v7lzoptqzu

Reconfigurable Intelligent Surface Empowered Over-the-Air Federated Edge Learning [article]

Hang Liu, Zehong Lin, Xiaojun Yuan, Ying-Jun Angela Zhang
2022 arXiv   pre-print
In this article, we study these challenges in over-the-air FEEL and leverage reconfigurable intelligent surface (RIS), a key enabler of future wireless systems, to address these challenges.  ...  We study the state-of-the-art solutions on RIS-empowered FEEL and explore the promising research opportunities for adopting RIS to enhance FEEL performance.  ...  As a key enabler of the smart radio environment, reconfigurable intelligent surface (RIS) perceives wireless propagation channels as programmable entities that can be dynamically configured [3] .  ... 
arXiv:2109.02353v2 fatcat:fpi7xru5tfghvbddd3z3teb4ba
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