SpectraLux: Towards Exploiting the Full Spectrum with Passive VLC

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Abstract

In recent years, the number of wireless applications has increased significantly, resulting in the radio bands becoming expensive and prone to interference. There is a new research area aiming at mitigating these issues by creating communication links using ambient light. This area, called passive-VLC, not only exploits the visible light frequencies, but does so with low-power transmitters. All the previous work in passive-VLC, however, forget about individual wavelength bands of light, and do not exploit its wide spectrum, reducing the potential channel capacity. In this paper, we propose a novel method to transmit and decode data, using liquid crystal cells that modulate and consider the full spectrum, and put it to the test by prototyping a multi-symbol communication link. The main contribution of our work is to show that passive-VLC can move from spectrum-agnostic to spectrum-aware modulation. We explore this new domain by making use of a novel type of receiver (i.e., a spectrometer) and uncovering the advantages and caveats of this spectrum-aware approach.

Original languageEnglish
Title of host publicationIPSN 2023 - Proceedings of the 2023 22nd International Conference on Information Processing in Sensor Networks
Place of PublicationNew York
PublisherAssociation for Computing Machinery (ACM)
Pages274-287
Number of pages14
ISBN (Print)979-8-4007-0118-4
DOIs
Publication statusPublished - 2023
Event22nd ACM/IEEE International Conference on Information Processing in Sensor Networks, IPSN 2023 - San Antonio, United States
Duration: 9 May 202312 May 2023

Conference

Conference22nd ACM/IEEE International Conference on Information Processing in Sensor Networks, IPSN 2023
Country/TerritoryUnited States
CitySan Antonio
Period9/05/2312/05/23

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

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