Visible Light Communication Numerous Applications

2018 ◽  
pp. 6672-6683 ◽  
Author(s):  
Ala' Fathi Khalifeh ◽  
Hasan Farahneh ◽  
Christopher Mekhiel ◽  
Xavier Fernando
Keyword(s):  
Visible Light ◽  
New Technology ◽  
Data Communication ◽  
Visible Light Communication ◽  
Traffic Signals ◽  
Radio Spectrum ◽  
Light Spectrum ◽  
Light Emitting ◽  
Radio Signals

Visible Light Communication (VLC) is a promising research topic that aims at utilizing the visible light spectrum for data communication, which in turns off-loads the heavily utilized wireless radio spectrum. VLC can take advantage of the increased use of Light Emitting Diodes (LED) for lighting purposes in different fields, such as automotive headlights, traffic signals, advertising, aviation and general lightening. Utilizing solid state lights LEDs for lighting purposes not only saves energy but also can be used for data communication since LEDs can be easily modulated by switching the light ON and Off in frequencies above the human eye perception. This data can be transmitted in addition to the main lightening functionality of these devices. VLC is relatively easy to implement, and safe, as it does not have potential side effects like the radio signals. As such, this new technology has a great potential for adoption in several applications. This book chapter will briefly introduce the technology and discuss some potential indoors and outdoors applications.

Visible Light Communication Numerous Applications

2019 ◽  
pp. 425-437
Author(s):  
Ala' Fathi Khalifeh ◽  
Hasan Farahneh ◽  
Christopher Mekhiel ◽  
Xavier Fernando
Keyword(s):  
Visible Light ◽  
New Technology ◽  
Data Communication ◽  
Visible Light Communication ◽  
Traffic Signals ◽  
Radio Spectrum ◽  
Research Topic ◽  
Light Spectrum ◽  
Light Emitting ◽  
Radio Signals

Visible light communication (VLC) is a promising research topic that aims at utilizing the visible light spectrum for data communication, which in turn off-loads the heavily utilized wireless radio spectrum. VLC can take advantage of the increased use of light emitting diodes (LED) for lighting purposes in different fields, such as automotive headlights, traffic signals, advertising, aviation, and general lighting. Utilizing solid-state LEDs for lighting purposes not only saves energy but also can be used for data communication since LEDs can be easily modulated by switching the light on and off in frequencies above the human eye perception. This data can be transmitted in addition to the main lighting functionality of these devices. VLC is relatively easy to implement and safe, as it does not have potential side effects like the radio signals. As such, this new technology has a great potential for adoption in several applications. This chapter will briefly introduce the technology and discuss some potential indoors and outdoors applications.

scholarly journals An Efficient Intelligent System for Data Communication Using LIFI Technology

2014 ◽  
Vol 13 (10) ◽  
pp. 5044-5050
Author(s):  
Dr. Naveen Rathee ◽  
Shreyaa Nagpal ◽  
Abhinav Malik ◽  
Charvi Khandelwal
Keyword(s):  
Visible Light ◽  
Intelligent System ◽  
Data Communication ◽  
Visible Light Communication ◽  
Radio Spectrum ◽  
Wireless Technology ◽  
Simple Experiment ◽  
Led Light ◽  
Human Eye ◽  
The World

The congestion of radio spectrum has led to the development of new wireless technology, Light Fidelity also referred as LIFI, which has a much broader spectrum. LIFI is a technology based on visible light communication (VLC) that makes use of LEDs as a source for data communication. The intensity of LED varies faster than a human eye can follow and helps to transmit the data. Our research deals with the usage of this technology for the future good of the world. A simple experiment to show the transmission of alphanumeric data using visible light communication is carried out. A Led light is the only source to transmit the data from the transmitter end to the receiver’s. A keyboard is being employed as an input for the alphanumeric data and an LCD to display the inputted characters.

scholarly journals Visible Light Communication Survey

2019 ◽  
pp. 22-31
Author(s):  
Eszter Udvary
Keyword(s):  
Visible Light ◽  
Light Emitting Diode ◽  
Rapid Evolution ◽  
Data Communication ◽  
Communication Technologies ◽  
Visible Light Communication ◽  
Light Emitting ◽  
Main Research ◽  
Novel Approach ◽  
Increasing Demand

Communication applying visible light technology is a novel approach. Visible Light Communication (VLC) development is motivated by the increasing demand for wireless communication technologies. It has the potential to provide highspeed data communication with good security and improved energy efficiency. The rapid evolution of VLC was sustained by the LEDs performances. The Light-Emitting-Diode (LED) luminaires are capable of switching to the different light intensity at a fast rate. This function can be used for data transmission. This article focuses on the physical layer of the VLC links. It reviews the technology, the topology of the proposed connection, and the benefits of this approach. The main research trends are identified emphasizing state of the art in this area. It shows how VLC technology evolved and what are the performances achieved at this time. Various structures of the transmitter and receiver are studied, and different modulation schemes are investigated. Finally, numerous applications of VLC technology are presented.

scholarly journals Visible Light Communication: A System Perspective—Overview and Challenges

Sensors ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 1153 ◽  
Author(s):  
Saeed Rehman ◽  
Shakir Ullah ◽  
Peter Chong ◽  
Sira Yongchareon ◽  
Dan Komosny
Keyword(s):  
Energy Efficiency ◽  
Visible Light ◽  
High Speed ◽  
Data Communication ◽  
Visible Light Communication ◽  
Communication Security ◽  
Light Spectrum ◽  
New Paradigm ◽  
System Perspective ◽  
High Speed Data

Visible light communication (VLC) is a new paradigm that could revolutionise the future of wireless communication. In VLC, information is transmitted through modulating the visible light spectrum (400–700 nm) that is used for illumination. Analytical and experimental work has shown the potential of VLC to provide high-speed data communication with the added advantage of improved energy efficiency and communication security/privacy. VLC is still in the early phase of research. There are fewer review articles published on this topic mostly addressing the physical layer research. Unlike other reviews, this article gives a system prespective of VLC along with the survey on existing literature and potential challenges toward the implementation and integration of VLC.

scholarly journals Transmission of Audio signals using Visible Light Communication via LEDs

2019 ◽  
Vol 8 (10) ◽  
pp. 2141-2146
Keyword(s):  
Visible Light ◽  
Light Emitting Diode ◽  
Visible Light Communication ◽  
Original Data ◽  
Wireless Channel ◽  
Audio Signals ◽  
Light Spectrum ◽  
Light Emitting ◽  
Optical Signals ◽  
Radio Frequency Spectrum

With the episodic increase of advancement in technology, wireless communication has become the need of the hour. The rate at which the use of wireless technology is being developed is tremendous. However, with the increase in usage, there has been unfortunately an increase in network complexity. In order to resolve the crisis of radio frequency spectrum, a newly developed technology has been proposed. This technology has been coined as Li-Fi: Light Fidelity. It is a technology, based on Visible Light Communication, which is used to transmit signals and data from one system to another with the help of a Led. The paper proposes a transmission system which will be responsible for transmitting audio signals from one system to another with the help of Li-Fi. Here a light emitting diode acts as the Li-Fi transmitter and photodiode acting as a Li-Fi receiver.The spontaneous switching of the Led enables propagation of signals through a wireless channel and is picked up by the receiving photodiode. The photodiode adhering to its functiontransforms the optical signals into electrical signals and therefore original data is retrieved and transferred. Additionally, with proposition to the system, a comparative study has been delineated with the already existing system.The existing system of networking and communications involve Wi-fi. The emergence and usage of Li-fi is necessary because it offers a substantially similar user experience to Wi-Fi except using the light spectrum. It is essential as it will able to meet up the connectivity demands of future as it is able to unlock unprecedented data and bandwidth.

scholarly journals Electroluminescence and photo-response of inorganic halide perovskite bi-functional diodes

Nanophotonics ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 1981-1988 ◽  
Author(s):  
Ning Li ◽  
Ying Suet Lau ◽  
Yanqin Miao ◽  
Furong Zhu
Keyword(s):  
Visible Light ◽  
High Speed ◽  
Light Emission ◽  
Forward Bias ◽  
Green Light ◽  
Visible Light Communication ◽  
Light Emitting ◽  
Response Characteristics ◽  
Photo Response ◽  
Halide Perovskite

AbstractIn this work, we report our efforts to develop a novel inorganic halide perovskite-based bi-functional light-emitting and photo-detecting diode. The bi-functional diode is capable of emitting a uniform green light, with a peak wavelength of 520 nm, at a forward bias of >2 V, achieving a high luminance of >103 cd/m2 at 7 V. It becomes an efficient photodetector when the bi-functional diode is operated at a reverse bias, exhibiting sensitivity over a broadband wavelength range from ultraviolet to visible light. The bi-functional diode possesses very fast transient electroluminescence (EL) and photo-response characteristics, e.g. with a short EL rising time of ~6 μS and a photo-response time of ~150 μS. In addition, the bi-functional diode also is sensitive to 520 nm, the wavelength of its peak EL emission. The ability of the bi-functional diodes for application in high speed visible light communication was analyzed and demonstrated using two identical bi-functional diodes, one performed as the signal generator and the other acted as a signal receiver. The dual functions of light emission and light detection capability, enabled by bi-functional diodes, are very attractive for different applications in under water communication and visible light telecommunications.

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