lifi light fidelity 2018

Li-Fi stands for Light Fidelity. The technology is very new and was proposed by the German physicist Harald Haas in 2011 TED (Technology, Entertainment, Design) Global Talk on Visible Light Communication (VLC). Li-Fi is a wireless optical networking technology that uses light emitting diodes (LEDs) for transmission of data. The term Li-Fi refers to visible light communication (VLC) technology that uses light as medium to deliver high-speed communication in a manner similar to Wi-Fi and complies with the IEEE standard IEEE 802.15.7. The IEEE 802.15.7 is a high-speed, bidirectional and fully networked wireless communication technology based standard similar to Wi-Fi’s IEEE 802.11.

Li-Fi provides better bandwidth, efficiency, connectivity and security than Wi-Fi and has already achieved high speeds larger than 1 Gbps under the laboratory conditions. By leveraging the low-cost nature of LEDs and lighting units, there are lots of opportunities to exploit this medium. Li-Fi is the transfer of data through light by taking fibre out of fibre optics and sending data through LED light bulb

Intelligent Transportation Systems Photovoltaic LiFi Communication Solution
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Over the past few decades, demand in mobility, particurly in individual mobility kept growing. The rapid traffic growth is suffering from specific drawbacks. For example, there are more deaths and injuries, a higher traffic congestion, a massive increase in greenhouse gas

Application of LiFi In Wireless Sensor Network A Survey
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The current world is approaching towards virtualization of different types of systems that enables performing activities without direct physical inter-action. The combination of high- speed internet and intelligent devices makes it easier to manage multiple jobs smoothly

LiFi Based Blind Indore Navigation System
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In this Project we have built a Li-Fi Based Indore Navigation System for visually impaired peoples. We see right now various technologies are there to solve the problems of those peoples like in some places there is brail language-based direction indicator and Voice

Data Transmission by Ceaser Cipher Wheel Encryption using Lifi
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The paper describes a microcontroller based secured optical wireless communication system using laser and phototransistor. These days the usage of Wi-Fi has reached to every nook and corner of the world. There are some downsides belong to the usage of Wi-Fi such

A Real Time Design and Development of 2D Image Transmission using Lifi Technology
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The main objective of this project is to transmit the image using LED (Light Emitting Diode). With the increasing popularity of solid state lighting devices, Visible Light Communication (VLC) is globally recognized as an advanced and promising technology to realize short

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In Previous year, constant monitoring is very difficult for people. Industrial monitor necessary more man power to monitor and control the industrial parameter such as temperature, current, voltage, gas, etc. So, Some occasion in away of technician it may occur abnormal

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Abstract: This paper focuses on the patient monitoring in the hospitals using the Li-Fi technology. Li-Fi stands for

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Extensive general stores have an incredible assortment of merchandise and diverse markets may have distinctive appropriation of commodity. Nowadays in shopping center for buying vareity of things it requires trolley. Every time client needs to pull the trolley from rack A free space cross-connection of the optical signals using an optical micro/nano-electro- mechanical system (OMEMS/ONEMS) is designed and simulated using the commercial software called MATLAB and OPTI-WAVE programs, in which a nonlinear micro-ring device

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The main objective of this project is to transmit the image using LED (Light Emitting Diode). With the increasing popularity of solid state lighting devices, Visible Light Communication (VLC) is globally recognized as an advanced and promising technology to realize short

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It is very difficult to communicate underwater so divers use white boards to communicate. But today an amazing technology that uses light to make underwater communication possible, proposed by the German physicist Harald Haas is Li-Fi technology. Light Fidelity (Li-Fi) is a

Li-Fi, its applications, features and comparison with existing technologies like Wi-Fi etc. Wi-Fi is of major use for general wireless coverage within building, whereas Li-Fi is ideal for high density wireless data coverage in confined area and especially useful for applications in areas where radio interference issues are of concern, so the two technologies can be considered complimentary.

COMMENT 2018-technology

  • Guru

    Li-Fi which can be the future of data communication appears to be a fast and cheap optical version of Wi-Fi. Being a Visible Light Communication (VLC), Li-Fi uses visible light of electromagnetic spectrum between 400 THz and 800 THz as optical carrier for data transmission and illumination. It uses fast pulses of light to transmit information in wireless medium. The main components of a basic Li-Fi system may contain the following:
    a) A high brightness white LED which acts as transmission source.
    b) A silicon photodiode with good response to visible light as the receiving element.
    Switching the LEDs on and off can make them generate digital strings with different combination of 1s and 0s. To generate a new data stream, data can be encoded in the light by varying the flickering rate of the LED. In this way, the LEDs work as a sender by modulating the light with the data signal. The LED output appears constant to the human because they are made to flicker at a phenomenal speed (millions of times per second) and it’s impossible for human eye to detect this frequency. Communication rate more than 100 Mbps can be achieved by using high speed LEDs with the help of various multiplexing techniques. And this VLC data rate can be further increased to as high as 10 Gbps via parallel data transmission using an array of LED lights with each LED transmitting a different data stream


    lifi light fidelity 2018 IEEE PAPER