scholarly journals A Novel Frequency Domain Visible Light Communication (VLC) Three-Dimensional Trilateration System for Localization in Underground Mining

2019 ◽  
Vol 9 (7) ◽  
pp. 1488 ◽  
Author(s):  
Ali Dehghan Firoozabadi ◽  
Cesar Azurdia-Meza ◽  
Ismael Soto ◽  
Fabian Seguel ◽  
Nicolas Krommenacker ◽  
...  
Keyword(s):  
Visible Light ◽  
Underground Mining ◽  
Light Emitting Diode ◽  
Estimation Error ◽  
Three Dimensional ◽  
Visible Light Communication ◽  
Average Error ◽  
Light Emitting ◽  
Localization Scheme ◽  
Global Positioning

A new visible light communication (VLC) system is proposed for localization in underground mining. Existent systems, such as global positioning system (GPS) and systems based on mobile communication, are generally not useful in underground mining. The proposed system is based on a three-dimensional trilateration VLC localization scheme. This articles offers an evaluation of the proposed system in different evaluation scenarios in terms of the average localization error. The proposed algorithm localizes the source with an average localization estimation error of less than (16.4 cm), based on the source location. The average error is (3.5 cm) for subjects that are very close to the light-emitting-diode (LEDs).The obtained results show the superiority of the proposed method in comparison with traditional short range radio frequency technologies such as RFID, Wi-Fi and Zigbee, making it a feasible system for localizing objects in underground mining.

Long-Distance Visible Light Communication Based on Light Emitting Diode Source

2017 ◽  
Vol 54 (5) ◽  
pp. 050602
Author(s):  
张宇飞 Zhang Yufei ◽  
张洪明 Zhang Hongming ◽  
王鹏 Wang Peng ◽  
刘涛 Liu Tao ◽  
孙德栋 Sun Dedong ◽  
...  
Keyword(s):  
Visible Light ◽  
Light Emitting Diode ◽  
Visible Light Communication ◽  
Long Distance ◽  
Light Emitting

scholarly journals A Full-Duplex LED-to-LED Visible Light Communication System

Electronics ◽  
2020 ◽  
Vol 9 (10) ◽  
pp. 1713
Author(s):  
Hyunwoo Jung ◽  
Sung-Man Kim
Keyword(s):  
Visible Light ◽  
Bit Error Rate ◽  
Error Rate ◽  
Signal To Noise Ratio ◽  
Light Emitting Diode ◽  
Visible Light Communication ◽  
Full Duplex ◽  
Signal To Noise ◽  
Light Emitting ◽  
Half Duplex

We experimentally demonstrated full-duplex light-emitting diode (LED)-to-LED visible light communication (VLC) using LEDs as the transmitter and receiver. Firstly, we investigated the performance dependency on the wavelengths of the LED transmitter and receiver by measuring the rise time and signal-to-noise ratio (SNR). Through the investigation, we were able to choose the optimal LED color set for LED-to-LED VLC using Shannon’s channel capacity law. The bit error rate (BER) results of full-duplex and half-duplex LED-to-LED VLC systems with the optimal LED sets are shown to compare the performance. Furthermore, we discuss major distortions and signal losses in the full-duplex LED-to-LED VLC system.

scholarly journals Usage of Light-Emitting Diode Lighting and Visible Light Communication Technology for Temperature Control

2021 ◽  
Vol 18 (4) ◽  
pp. 7-24
Author(s):  
Svetlana Grigoryeva ◽  
Alexander Baklanov ◽  
Aslima Alimkhanova ◽  
Alexander Dmitriev ◽  
György Györök
Keyword(s):  
Visible Light ◽  
Communication Technology ◽  
Temperature Control ◽  
Light Emitting Diode ◽  
Visible Light Communication ◽  
Light Emitting

scholarly journals Performance Analysis of Software-Defined PHY-I Visible Light Communication System

2021 ◽  
Author(s):  
Uğur Bekçibaşı ◽  
Kubilay TASDELEN
Keyword(s):  
Visible Light ◽  
Light Emitting Diode ◽  
Visible Light Communication ◽  
Physical Layer ◽  
Performance Measurements ◽  
Media Access ◽  
Current Standard ◽  
Medium Access ◽  
Light Emitting ◽  
Symbol Detection

Abstract Visible Light Communication (VLC) is an up-to-date issue where Light Emitting Diode (LED) is used for lighting and data transmission. Although interest in Visible Light Communication has increased in current academic studies, the devices ready for commercial use are still lacking. In this study, the system design of semi-software-based visible light communication which is designed to work in Layer 1 of the IEEE 802.15.7-2011 standard is presented and its performance under different conditions is investigated. Designed on an embedded Linux platform, where LED lights are used as transmitter and photodiode as a receiver, the system can supply the workload of the current standard at basic speeds with a basic physical layer, media access principles, and protocol support. In the structure, software and hardware are designed, which include basic principles such as signal sampling, symbol detection, encoding/decoding in the Physical layer of the OSI network model (PHY), and Medium Access Control (MAC). Low and high-power LEDs as transmitters and photodiodes as receivers are built on BeagleBone Black (BBB), a System on a Chip (SoC) platform. For performance measurements, the measurement results of variables such as ambient brightness, communication distance, ultraviolet (UV) - Polarizer - Neutral Density (ND) filters, and data load are presented.

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