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Intelligent Beam Steering for Wireless Communication Using Programmable Metasurfaces

Ashraf, Nouman ; Saeed, Taqwa LU ; Taghvaee, Hamidreza ; Abadal, Sergi and Vassiliou, Vasos (2023) In IEEE Transactions on Intelligent Transportation Systems 24(5). p.4848-4861
Abstract
Reconfigurable Intelligent Surfaces (RIS) are well established as a promising solution to the blockage problem in millimeter-wave (mm-wave) and terahertz (THz) communications, envisioned to serve demanding networking applications, such as 6G and vehicular. HyperSurfaces (HSF) is a revolutionary enabling technology for RIS, complementing Software Defined Metasurfaces (SDM) with an embedded network of controllers to enhance intelligence and autonomous operation in wireless networks. In this work, we consider feedback-based autonomous reconfiguration of the HSF controller states to establish a reliable communication channel between a transmitter and a receiver via programmable reflection on the HSF when Line-of-sight (LoS) between them is... (More)
Reconfigurable Intelligent Surfaces (RIS) are well established as a promising solution to the blockage problem in millimeter-wave (mm-wave) and terahertz (THz) communications, envisioned to serve demanding networking applications, such as 6G and vehicular. HyperSurfaces (HSF) is a revolutionary enabling technology for RIS, complementing Software Defined Metasurfaces (SDM) with an embedded network of controllers to enhance intelligence and autonomous operation in wireless networks. In this work, we consider feedback-based autonomous reconfiguration of the HSF controller states to establish a reliable communication channel between a transmitter and a receiver via programmable reflection on the HSF when Line-of-sight (LoS) between them is absent. The problem is to regulate the angle of reflection on the metasurface such that the power at the receiver is maximized. Extremum Seeking Control (ESC) is employed with the control signals generated mapped into appropriate metasurface coding signals which are communicated to the controllers via the embedded controller network (CN). This information dissemination process incurs delays which can compromise the stability of the feedback system and are thus accounted for in the performance evaluation. Extensive simulation results demonstrate the effectiveness of the proposed method to maximize the power at the receiver within a reasonable time even when the latter is mobile. The spatiotemporal nature of the traffic for different sampling periods is also characterized. (Less)
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author
; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Beam steering, Extremum seeking control, HyperSurface, Intelligent reflecting surfaces, Metamaterial, Programmable wireless environments
in
IEEE Transactions on Intelligent Transportation Systems
volume
24
issue
5
pages
14 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85149361980
ISSN
1524-9050
DOI
10.1109/TITS.2023.3241214
language
English
LU publication?
no
id
d47f21e0-8e79-4942-a249-1d48f58b27b0
date added to LUP
2023-03-17 11:38:39
date last changed
2023-10-26 15:00:29
@article{d47f21e0-8e79-4942-a249-1d48f58b27b0,
  abstract     = {{Reconfigurable Intelligent Surfaces (RIS) are well established as a promising solution to the blockage problem in millimeter-wave (mm-wave) and terahertz (THz) communications, envisioned to serve demanding networking applications, such as 6G and vehicular. HyperSurfaces (HSF) is a revolutionary enabling technology for RIS, complementing Software Defined Metasurfaces (SDM) with an embedded network of controllers to enhance intelligence and autonomous operation in wireless networks. In this work, we consider feedback-based autonomous reconfiguration of the HSF controller states to establish a reliable communication channel between a transmitter and a receiver via programmable reflection on the HSF when Line-of-sight (LoS) between them is absent. The problem is to regulate the angle of reflection on the metasurface such that the power at the receiver is maximized. Extremum Seeking Control (ESC) is employed with the control signals generated mapped into appropriate metasurface coding signals which are communicated to the controllers via the embedded controller network (CN). This information dissemination process incurs delays which can compromise the stability of the feedback system and are thus accounted for in the performance evaluation. Extensive simulation results demonstrate the effectiveness of the proposed method to maximize the power at the receiver within a reasonable time even when the latter is mobile. The spatiotemporal nature of the traffic for different sampling periods is also characterized.}},
  author       = {{Ashraf, Nouman and Saeed, Taqwa and Taghvaee, Hamidreza and Abadal, Sergi and Vassiliou, Vasos}},
  issn         = {{1524-9050}},
  keywords     = {{Beam steering; Extremum seeking control; HyperSurface; Intelligent reflecting surfaces; Metamaterial; Programmable wireless environments}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{5}},
  pages        = {{4848--4861}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Transactions on Intelligent Transportation Systems}},
  title        = {{Intelligent Beam Steering for Wireless Communication Using Programmable Metasurfaces}},
  url          = {{http://dx.doi.org/10.1109/TITS.2023.3241214}},
  doi          = {{10.1109/TITS.2023.3241214}},
  volume       = {{24}},
  year         = {{2023}},
}