Please use this identifier to cite or link to this item:
Title: Experimentally derived feasibility of optical camera communications under turbulence and fog conditions
Authors: Matus Icaza, Vicente 
Eso, Elizabeth
Teli, Shivani Rajendra
Perez-Jimenez, Rafael 
Zvanovec, Stanislav
UNESCO Clasification: 3307 Tecnología electrónica
3325 Tecnología de las telecomunicaciones
Keywords: Cmos Image Sensor
Fog Attenuation
Heat-Induced Turbulence
Meteorological Visibility
Optical Camera Communications (Occ), et al
Issue Date: 2020
Journal: Sensors 
Abstract: Optical camera communications (OCC) research field has grown recently, aided by ubiquitous digital cameras; however, atmospheric conditions can restrict their feasibility in outdoor scenarios. In this work, we studied an experimental OCC system under environmental phenomena emulated in a laboratory chamber. We found that the heat-induced turbulence does not affect our system significantly, while the attenuation caused by fog does decrease the signal quality. For this reason, a novel strategy is proposed, using the camera’s built-in amplifier to overcome the optical power loss and to decrease the quantization noise induced by the analog-digital converter of the camera. The signal quality has been evaluated using the Pearson’s correlation coefficient with respect to a reference template signal, along with the signal-to-noise ratio that has been empirically evaluated. The amplification mechanism introduced allows our system to receive the OCC signal under heavy fog by gradually increasing the camera gain up to 16 dB, for meteorological visibility values down to 10 m, with a correlation coefficient of 0.9 with respect to clear conditions.
ISSN: 1424-8220
DOI: 10.3390/s20030757
Source: Sensors [ISSN 1424-8220], v. 20 (3)
Appears in Collections:Artículos
Show full item record

Google ScholarTM




Export metadata

Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.