scholarly journals Design and Development of Audio Data Transmission Using Visible Light Communication

Author(s):  
Catur Budi Waluyo ◽  
Benedictus Mardwianta ◽  
Oswald Richfild Tambunan ◽  
Lasmadi

Technological developments have opened up a new infrastructure in communication for transmitting audio data. This is evidenced by the large number of communication media, both wired and wireless. So that it raises new methods for sending audio data, one of which is using Visible Light Communication (VLC). VLC is a communication system for transmitting and receiving data using the visible light wave spectrum between 375 nm - 780 nm. In this research, audio data communication utilizes the brightness of the LED light. The transmitter and receiver use an LED component as a transducer which is then sent to the data processing circuit. From the data processing circuit then sent to the audio amplifier circuit. From the test results it can be shown that this system can transmit audio data. Based on the LED color test, Green produces the highest output voltage of 1.32 Volt. The angle limit that can be detected by the photo diode is at an angle of 70° with a measured voltage of 100mV and the resulting sound intensity of -32.541dB.

2013 ◽  
Vol 60 ◽  
pp. 34-39 ◽  
Author(s):  
Rabee M. Hagema ◽  
Tim Haelsig ◽  
Steven G. O’Keefe ◽  
Andy Stamm ◽  
Thomas Fickenscher ◽  
...  

2014 ◽  
Vol 13 (10) ◽  
pp. 5044-5050
Author(s):  
Dr. Naveen Rathee ◽  
Shreyaa Nagpal ◽  
Abhinav Malik ◽  
Charvi Khandelwal

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.


Author(s):  
M.S. M. Gismalla ◽  
M.F. L. Abdullah

Visible light communication VLC is deemed as futuristic technology applied for both illumination and data communication due to the low-cost energy consumption, long life expectancy, huge bandwidth, and high security compared to radio frequency RF. Uncovered area, minimum signal-to-noise ratio (SNR) and received power results from the non-uniform distribution of small base stations (i.e. Optical attocells) in the room. In this paper, the researchers propose a new LEDs distribution of five optical attocells configuration model in order to optimize the received power distribution and SNR at the center of the room for indoor VLC system. The optical attocells configuration in terms of received power to fill the uncovered area at the center of the room has been investigated. The simulation results showed that the proposed attocells configuration saved 24.9% of the transmitted power. Besides that, the whole room was covered uniformly.  As a result, the received power and SNR are improved.


Author(s):  
Ala' Fathi Khalifeh ◽  
Hasan Farahneh ◽  
Christopher Mekhiel ◽  
Xavier Fernando

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.


Author(s):  
Ala' Fathi Khalifeh ◽  
Hasan Farahneh ◽  
Christopher Mekhiel ◽  
Xavier Fernando

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.


Author(s):  
Tyran Kinny ◽  
Franklin Puthuva ◽  
Ashore Komban ◽  
Dipti Belekar

Visible Light Communication (VLC) using a Light Fidelity system, as proposed by a German physicist—Harald Haas, provides transmission of data through illumination by sending data through an LED light source that varies in intensity that can be controlled and adjusted such that it appears as normal light to the naked human eye. Here the property of persistence of vision of the human eye is exploited for additional application of a free, sustainable and green source that can be used for wireless communication at very fast data rates. This paper focuses on developing a low cost Li-Fi based system and analyses its performance with respect to existing wireless technology. Wi-Fi is great for general wireless coverage within buildings, whereas Li-Fi is ideal for high density wireless data coverage in confined area and for relieving radio interference issues. Li-Fi based system provides better bandwidth, efficiency, availability and security than Wi-Fi and has already achieved higher data rates. By leveraging the low-cost nature of LEDs and lighting units there are many opportunities to exploit this medium, from public internet access through day-to-day light sources which have their primary purpose of only emitting light. This project envisions a future where data for communication devices will be transmitted through the visible spectrum thus de-clogging the currently overused RF spectrum.


2019 ◽  
pp. 22-31
Author(s):  
Eszter Udvary

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.


Sensors ◽  
2019 ◽  
Vol 19 (5) ◽  
pp. 1153 ◽  
Author(s):  
Saeed Rehman ◽  
Shakir Ullah ◽  
Peter Chong ◽  
Sira Yongchareon ◽  
Dan Komosny

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.


2020 ◽  
Vol 305 ◽  
pp. 00089 ◽  
Author(s):  
Simona Riurean ◽  
Marius Olar ◽  
Andreea Ionică ◽  
Lilla Pellegrini

Visible Light Communication (VLC) technology allows wireless data transmission piggybacked by illumination. Highly accurate and reliable systems based on VLC, as Indoor Positioning System (IPS) have been already developed by academics and specialized companies. Underground Positioning System (UPS) addressed here is embedded into the protection equipment, compulsory to be used underground, being therefore important to workers in potential dangerous spaces since fast data communication and real-time data interpretation is therefore possible. This paper presents the VLC technology implemented in mining underground specific environment for an accurate positioning and fast data communication for underground navigation with the main aim of developing a real time warning and alarming system based on Augmented Reality (AR) and Neural Networks (NNs) principles.


Author(s):  
Sivasankari M

Abstract: A major issue in public places like shopping malls, museums and hospitals is parking. Parking is the main service used by the people in these private units. The management of these public units invests more time and money in designing parking systems. Existing parking systems are equipped with appropriate sensors and controllers to count the parked cars automatically, but it does not indicate empty parking slots. These systems consume more power and tend to wireless interference. The proposed system, namely, Visible Light Communication based Smart Parking System introduces Visible Light Communication, a data communication technology using a low power Arduino Uno – Atmega328microcontroller to help drivers to get real-time parking information. Real-time information on free parking slots helps drivers to save time and reduce fuel consumption. Visible Light Communication (VLC) or Li Fi or Optical Wireless technology means the wireless data transfer using LED. Wireless interference is greatly reduced by using VLC. The proposed system is suitable for multiple floor buildings, which involves data gathering from parking side modules integrated in multiple floors of the building. Parking side modules continuously collects the data and intimates the module integrated in the vehicle section. The module in the vehicle section interfaces a GSM modem to send the detected information to the user mobile. The result of the proposed system is validated in an indoor environment. Keywords: LED, LI-FI, WI-FI


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