Performance of Vehicular Visible Light Communications under the Effects of Atmospheric Turbulence with Aperture Averaging

Eso, Elizabeth, Ghassemlooy, Zabih, Zvanovec, Stanislav, Sathian, Juna, Mansour Abadi, Mojtaba and Younus, Othman (2021) Performance of Vehicular Visible Light Communications under the Effects of Atmospheric Turbulence with Aperture Averaging. Sensors, 21 (8). p. 2751. ISSN 1424-8220

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Official URL: https://doi.org/10.3390/s21082751

Abstract

In this paper, we investigate the performance of a vehicular visible light communications (VVLC) link with a non-collimated and incoherent light source (a light-emitting diode) as the transmitter (Tx), and two different optical receiver (Rx) types (a camera and photodiode (PD)) under atmospheric turbulence (AT) conditions with aperture averaging (AA). First, we present simulation results indicating performance improvements in the signal-to-noise ratio (SNR) under AT with AA with increasing size of the optical concentrator. Experimental investigations demonstrate the potency of AA in mitigating the induced signal fading due to the weak to moderate AT regimes in a VVLC system. The experimental results obtained with AA show that the link’s performance was stable in terms of the average SNR and the peak SNR for the PD and camera-based Rx links, respectively with <1 dB SNR penalty for both Rxs, as the strength of AT increases compared with the link with no AT.

Item Type: Article
Additional Information: Funding information: The work was supported by the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Sklodowska–Curie grant agreement number 764461 (VISION) and the EU COST Action on Newfocus (CA19111), and partly by CELSA project PICNIC.
Uncontrolled Keywords: vehicular; visible light communication; atmospheric turbulence; aperture averaging; incoherent light source
Subjects: F300 Physics
H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Elena Carlaw
Date Deposited: 13 Apr 2021 14:50
Last Modified: 23 Apr 2021 14:24
URI: http://nrl.northumbria.ac.uk/id/eprint/45909

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