Scope and Challenges in Light Fidelity(LiFi) Technology in Wireless Data Communication (original) (raw)
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Li-Fi Technology: Data Transmission Through Visible Light
2017
People are always in search of Wi-Fi hotspots because Internet is a major demand nowadays. But like all other technologies, there is still room for improvement in the Wi-Fi technology with regards to the speed and quality of connectivity. In order to address these aspects, Harald Haas, a professor at the University of Edinburgh, proposed what we know as the Li-Fi (Light Fidelity). Li-Fi is a new technology in the field of wireless communication to provide connectivity within a network environment. It is a two-way mode of wireless communication using light. Basically, the data is transmitted through Light Emitting Diodes which can vary the intensity of light very fast, even faster than the blink of an eye. From the research and experiments conducted so far, it can be said that Li-Fi can increase the speed and reliability of the transfer of data. This paper pays particular attention on the assessment of the performance of this technology. In other words, it is a 5G technology which us...
Visible Light Communication for Data and Audio Transmission using Light -Fidility (Li-Fi)
International Journal of Scientific Research in Computer Science, Engineering and Information Technology, 2019
LiFi is a wireless optical networking technology that uses light-emitting diodes (LEDs) for data transmission. LiFi is designed to use LED light bulbs similar to those currently in use in many energy-conscious homes and offices. LiFi data is transmitted by the LED bulbs and received by photoreceptors. Li-Fi technology transmits data at very high speed and is capable of delivering 224GB of data per second. Furthermore, it offers better security as compared to Wi-Fi. Due to its high speed, Li-Fi technology can be widely used in electromagnetic sensitive areas, such as, hospitals, airplanes, and nuclear power plants. Light Fidelity (Li-Fi) is a data transfer technique that uses light. Light is analogous not only to illumination but also to speed. Li-Fi is also much secured since light cannot pass through walls. It uses visible light portion of the electromagnetic spectrum to transmit information. Hence the visible light communication solves the problem of radio frequency congestion. In this project we transmit data and audio through light at very high data rates without use of microcontrollers and its other peripheral devices.
International Journal of Scientific Research in Computer Science, Engineering and Information Technology, 2019
Li-Fi stands for Light-Fidelity. This technology is very new and was proposed by the German physicist Harald Haas in 2011. Light based communication system is the backbone of the future of the communication system. Li-Fi is a wireless technology that uses light emitting diodes (LEDs) for transmission of data. The development of the wireless communication leads to advance research in LiFi technology. The term Li-Fi states to visible light communication (VLC) technology that uses as medium to deliver high-speed communication in a fashion similar to Wi-Fi. Li-Fi comprises a wide range of frequencies and wavelengths, from the Infrared through visible and down to the Ultraviolet spectrum. The immense use of Li-Fi may solve some bottleneck of data transmission in Wi-Fi technology. With the innovation in technology and the number of users, the existing radio-wave spectrum fails to accommodate this need. To resolve the issues of scalability, availability and security, we have come up with the concept of transmitting data wirelessly through light using visible light communication (VLC) technology. This paper objective is to study and describe the LiFi technology. The improvement of the wireless communication leads to advance research in LiFi technology through Visible Light Communications (VLC) Technology.
Wireless Data Communication Using Li-Fi Technology
Future electric lights willbecomprised of visible LEDS (light emitting diode).Visible led'swithhigh power output are expected to serve in the nextgeneration of lamps. An indoor visible data transmission system utilizing visible led lights isproposed. In the system, thesedevices are used not only for illuminatingrooms but also for an opticalwireless communication system. This system issuitable for private networks such as consumer communication networks. Howeveritremainsnecessary to investigate the properties of visible led'swhenthey are used as opticaltransmitters. Based on numerical analyses and computer simulations itcanbeused for indoor optical transmission. Infrared light isalreadyused for communication, such as wirelessremote control, IrDA(InsuranceRegulator and DevelopmentAuthority), Infraredwireless LAN, and infrared inter-building communication. However, visible light LEDs are beginning to beused in every home and office, whichmakes visible light LEDsideal for ubiquitous data transmitter.
Data Transfer using LI-FI Technology
The term Li-Fi was coined by Professor Harald Haas, and refers to light based communications technology that delivers a high-speed, bidirectional networked, mobile communications in a similar manner as Wi-Fi. This paper focuses on developing a Li-Fi based system and analyze its performance with respect to existing technology. The proposed use of Li-Fi technology mainly comprises of light-emitting diode (LED) bulbs as means of connectivity by sending data through light spectrum as an optical wireless medium using Visible Light Communication(VLC).
A Real Time Data Transmission with LED Bulb using Li-Fi Technology
Li-fi Technology is one of the exploring fields that enhances the power of data communication and inter-networks. Li-Fi technology, proposed by the German physicist—Harald Haas, researched that transmission of data through illumination by sending data through an LED light bulb. As LED light varies in intensity faster than the human eye can feel ,it also have higher frequency than Radio wave which results in much higher speed than Wi-Fi. LED increases the efficiency, durability and Data rate, thus empowering the growth of Li-Fi systems and Visible Light Communication (VLC) system. The Speed of nearly 10 Gbps can be achieved by using LED Bulbs instead of using all traditional incandescent bulbs or compact fluorescent devices. The scope of the author is to use a LED Bulbs as sources of data transmission and communication in Local area network like Home, office, Organization and etc.