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LiFi through Reconfigurable Intelligent Surfaces: A New Frontier for 6G? | IEEE Journals & Magazine | IEEE Xplore

LiFi through Reconfigurable Intelligent Surfaces: A New Frontier for 6G?


Abstract:

Light fidelity (LiFi), which is based on visible-light communications (VLC), is celebrated as a cutting-edge technological paradigm that is envisioned to be an indispensa...Show More

Abstract:

Light fidelity (LiFi), which is based on visible-light communications (VLC), is celebrated as a cutting-edge technological paradigm that is envisioned to be an indispensable part of 6G systems. Nonetheless, LiFi performance is subject to efficiently overcoming line-of-sight (LoS) blockage, whose adverse effect on the reliability of wireless reception becomes even more pronounced in highly dynamic environments, such as vehicular applications. Meanwhile, reconfigurable intelligent surfaces (RISs) have recently emerged as a revolutionary concept that transforms the physical propagation environment into a fully controllable and customizable space using a low-cost, low-power approach. We anticipate that the integration of RISs into LiFi-enabled networks will not only support blockage mitigation but will also provision complex interactions among network entities, and is hence manifested as a promising platform that enables a plethora of technological trends and new applications. In this article, for the first time in open literature, we set the scene for a holistic overview of RIS-assisted LiFi systems. Specifically, we explore the underlying RIS architecture from the perspective of physics and present a forward-looking vision that outlines potential operational elements supported by RIS-enabled transceivers and environments. Finally, we highlight major associated challenges and offer a look ahead toward promising future directions.
Published in: IEEE Vehicular Technology Magazine ( Volume: 17, Issue: 1, March 2022)
Page(s): 37 - 46
Date of Publication: 12 November 2021

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