Cited by 1,717Advanced Wireless Communication TechnologiesAdvanced Antenna and Metasurface TechnologiesEnergy Harvesting in Wireless Networks

Smart radio environments empowered by reconfigurable AI meta-surfaces: an idea whose time has come

Open access
Renzo, Marco Di, Debbah, Merouane, Phan-Huy, Dinh-Thuy, Zappone, Alessio, Alouini, Mohamed-Slim, Yuen, Chau, Sciancalepore, Vincenzo, Alexandropoulos, George C. +6 more·2019·EURASIP Journal on Wireless Communications and Networking

Abstract

Future wireless networks are expected to constitute a distributed intelligent wireless communications, sensing, and computing platform, which will have the challenging requirement of interconnecting the physical and digital worlds in a seamless and sustainable manner. Currently, two main factors prevent wireless network operators from building such networks: (1) the lack of control of the wireless environment, whose impact on the radio waves cannot be customized, and (2) the current operation of wireless radios, which consume a lot of power because new signals are generated whenever data has to be transmitted. In this paper, we challenge the usual “more data needs more power and emission of radio waves” status quo, and motivate that future wireless networks necessitate a smart radio environment: a transformative wireless concept, where the environmental objects are coated with artificial thin films of electromagnetic and reconfigurable material (that are referred to as reconfigurable intelligent meta-surfaces), which are capable of sensing the environment and of applying customized transformations to the radio waves. Smart radio environments have the potential to provide future wireless networks with uninterrupted wireless connectivity, and with the capability of transmitting data without generating new signals but recycling existing radio waves. We will discuss, in particular, two major types of reconfigurable intelligent meta-surfaces applied to wireless networks. The first type of meta-surfaces will be embedded into, e.g., walls, and will be directly controlled by the wireless network operators via a software controller in order to shape the radio waves for, e.g., improving the network coverage. The second type of meta-surfaces will be embedded into objects, e.g., smart t-shirts with sensors for health monitoring, and will backscatter the radio waves generated by cellular base stations in order to report their sensed data to mobile phones. These functionalities will enable wireless network operators to offer new services without the emission of additional radio waves, but by recycling those already existing for other purposes. This paper overviews the current research efforts on smart radio environments, the enabling technologies to realize them in practice, the need of new communication-theoretic models for their analysis and design, and the long-term and open research issues to be solved towards their massive deployment. In a nutshell, this paper is focused on discussing how the availability of reconfigurable intelligent meta-surfaces will allow wireless network operators to redesign common and well-known network communication paradigms.

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Crossref · 10.1186/s13638-019-1438-9

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  • Reconfigurable intelligent surfaces are designed to sense the wireless environment and apply customised transformations to radio waves adaptively.

    “Latest works have defined and justified the conception of reconfigurable intelligent surfaces, which are designed to sense the wireless environment and apply customised transformations to the radio waves in an adaptive manner [30], [70].”

    From What should 6G be? (2020) · cites this paper as [30]

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Research works printed but not linked: 11

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Authors
Renzo, M. D., Debbah, M., Phan-Huy, D.-T., Zappone, A., Alouini, M.-S., Yuen, C., Sciancalepore, V., Alexandropoulos, G. C., Hoydis, J., Gacanin, H., Rosny, J. D., Bounceur, A., Lerosey, G., & Fink, M.
Affiliations
  • Université Paris-Sud (FR)
  • Huawei Technologies (France) (FR)
  • Orange (France) (FR)
  • Laboratoire des signaux et systèmes (FR)
  • King Abdullah University of Science and Technology (SA)
  • Singapore University of Technology and Design (SG)
  • NEC (Germany) (DE)
  • National and Kapodistrian University of Athens (GR)
  • Nokia (France) (FR)
  • Nokia (Belgium) (BE)
  • Institut Langevin (FR)
  • Greenerwave (France) (FR)
Corresponding author
Renzo, Marco Di
Venue
EURASIP Journal on Wireless Communications and Networking
Published
2019-05-23
Volume
2019
Issue
1
ISSN
  • 1687-1472 (ISSN-L)
  • 1687-1499
OpenAlex
W2963121727
Cited by
1,717
References
156
Citations by year
2026: 75 · 2025: 151 · 2024: 196 · 2023: 272 · 2022: 320 · 2021: 365 · 2020: 290 · 2019: 47 · 2018: 1
FWCI
91.56
Type
journal article
Language
en
Open access
Locations
  • EURASIP Journal on Wireless Communications and Networking (publishedVersion, cc-by)
  • HAL (submittedVersion)
  • HAL (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Archivio Istituzionale della Ricerca - Università degli Studi di Cassino (submittedVersion)
  • RWTH Publications (RWTH Aachen) (submittedVersion, other-oa)
  • King Abdullah University of Science and Technology Repository (King Abdullah University of Science and Technology) (submittedVersion, cc-by)
Topics
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Wireless Communication Technologies
  • Physical Sciences › Engineering › Aerospace Engineering › Advanced Antenna and Metasurface Technologies
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Energy Harvesting in Wireless Networks
Keywords
smart radio environments, wireless sensing, backscatter communication, network coverage, health monitoring, wireless networks, energy efficiency

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