Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/107076
Title: Design and experimental characterization of a discovery and tracking system for optical camera communications
Authors: Mederos-Barrera, Antonio
Jurado Verdú, Cristo Manuel 
Guerra Yánez, Víctor 
Rabadán, José A. 
Perez-Jimenez, Rafael 
UNESCO Clasification: 3325 Tecnología de las telecomunicaciones
Keywords: Detection System
Discovery System
K Parameters
Optical Camera Communications
Test System For Tracking Systems, et al
Issue Date: 2021
Journal: Sensors
Abstract: Visible light communications (VLC) technology is emerging as a candidate to meet the demand for interconnected devices’ communications. However, the costs of incorporating specific hardware into end-user devices slow down its market entry. Optical camera communication (OCC) technology paves the way by reusing cameras as receivers. These systems have generally been evaluated under static conditions, in which transmitting sources are recognized using computation-ally expensive discovery algorithms. In vehicle-to-vehicle networks and wearable devices, tracking algorithms, as proposed in this work, allow one to reduce the time required to locate a moving source and hence the latency of these systems, increasing the data rate by up to 2100%. The proposed receiver architecture combines discovery and tracking algorithms that analyze spatial features of a custom RGB LED transmitter matrix, highlighted in the scene by varying the cameras’ exposure time. By using an anchor LED and changing the intensity of the green LED, the receiver can track the light source with a slow temporal deterioration. Moreover, data bits sent over the red and blue channels do not significantly affect detection, hence transmission occurs uninterrupted. Finally, a novel experimental methodology to evaluate the evolution of the detection’s performance is proposed. With the analysis of the mean and standard deviation of novel K parameters, it is possible to evaluate the detected region-of-interest scale and centrality against the transmitter source’s ideal location.
URI: http://hdl.handle.net/10553/107076
ISSN: 1424-8220
DOI: 10.3390/s21092925
Source: Sensors[ISSN 1424-8220],v. 21 (9), (Mayo 2021)
Appears in Collections:Artículos
Adobe PDF (2,08 MB)
Show full item record

Google ScholarTM

Check

Altmetric


Share



Export metadata



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