Design and implementation of LED–LED indoor visible light communication system

Dahri, Faisal Ahmed; Umrani, Fahim Aziz; Baqai, Attiya; Mangrio, Hyder Bux

doi:10.1016/j.phycom.2019.100981

Cited by 17 publications

(7 citation statements)

References 22 publications

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“…The timing effects would also be important to the research community adopting LEDs as optical communication devices [62][63][64] and warrants exploration. In all applications outside of controlled environments, noise can be a considerable issue for any detection device.…”

Section: Discussionmentioning

confidence: 99%

LED PEDD Discharge Photometry: Effects of Software Driven Measurements for Sensing Applications

Fay

Nattestad

2022

Sensors

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This work explores the effects of embedded software-driven measurements on a sensory target when using a LED as a photodetector. Water turbidity is used as the sensory target in this study to explore these effects using a practical and important water quality parameter. Impacts on turbidity measurements are examined by adopting the Paired Emitter Detector Diode (PEDD) capacitive discharge technique and comparing common embedded software/firmware implementations. The findings show that the chosen software method can (a) affect the detection performance by up to 67%, (b) result in a variable sampling frequency/period, and (c) lead to an disagreement of the photo capacitance by up to 23%. Optimized code is offered to correct for these issues and its effectiveness is shown through comparative analyses, with the disagreement reduced significantly from 23% to 0.18%. Overall, this work demonstrates that the embedded software is a key and critical factor for PEDD capacitive discharge measurements and must be considered carefully for future measurements in sensor related studies.

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Section: Discussionmentioning

confidence: 99%

LED PEDD Discharge Photometry: Effects of Software Driven Measurements for Sensing Applications

Fay

Nattestad

2022

Sensors

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“…The system achieved 2.4 kb/s with a range under 18 cm. Dahri et al [3] developed the system with a simple transistor-based LED transmitter and a resistor driver-based LED receiver operating in photo-conductive mode. The system achieved a throughput of 1 Mb/s at the range of 20 cm under indoor lighting conditions.…”

Section: P-type N-type Depletion Regionmentioning

confidence: 99%

LED-to-LED based VLC systems

Mir

Majlesein²,

Guzmán

et al. 2021

Proceedings of the Workshop on Internet of Lights

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Visible light communication (VLC) is an emerging short-range wireless communication technology using the unlicensed light spectrum. Light Emitting Diode (LED) is used as VLC transmitter, while photodiodes or image sensors are used as receiver, depending on the applications and hardware constraints. However, LEDs can be used not only as a transmitter, but also as a receiver in applications where cost is of primary concern. LED as a receiver is sensitive to a narrow band of wavelengths, it is robust to sunlight interference and widely available as compared to other light detectors. This paper surveys the potential and limitations of LED-to-LED communication. It also contributes to identifying the challenges and potential research directions in this rising area of interest. CCS CONCEPTS• Hardware → Emerging optical and photonic technologies.

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“…Therefore, OCC is suitable for the V2V communication field [3]. In the OCC system, Light Emitting Diodes (LEDs) are used as transmitters [4], which are common illuminating devices [5]. Each LED can be individually modulated, which can significantly improve communication speed.…”

Section: Introductionmentioning

confidence: 99%

An LED Detection and Recognition Method Based on Deep Learning in Vehicle Optical Camera Communication

et al. 2021

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In the Vehicle to Vehicle (V2V) communication based on Optical Camera Communication (OCC), optical signals are transmitted using LED arrays and received employing cameras. In a complex scene, how to accurately detect and recognize LEDs in real time remains a problem. To solve this problem, this paper designs an end-to-end network based on You Only Look Once version 5 (YOLOv5) object detection model, which can precisely detect the LED array position in real time and alleviate motion blur simultaneously. Further, we propose an LED segmentation recognition method, which is beneficial to more reliable LED status recognition. It allows more light sources to be used for communication, which can effectively improve data rate in the vehicle OCC system. The effectiveness of our method is demonstrated by theoretical analysis and experiments in real traffic scenes. Our code is available at https://github.com/cq100/D2Net.

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Design and implementation of LED–LED indoor visible light communication system

Cited by 17 publications

References 22 publications

LED PEDD Discharge Photometry: Effects of Software Driven Measurements for Sensing Applications

LED PEDD Discharge Photometry: Effects of Software Driven Measurements for Sensing Applications

LED-to-LED based VLC systems

An LED Detection and Recognition Method Based on Deep Learning in Vehicle Optical Camera Communication

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