In the present era, wifi is the most trending domain. Dec 17, 2015 synergies are harnessed as luminaries become lifi attocells resulting in enhanced wireless capacity providing the necessary connectivity to realise the internetofthings, and contributing to the key performance indicators for the fifth generation of cellular systems 5g and beyond. Lifi is a subset of optical wireless communication owc and can be a complement to rf communication wifi or cellular network, or a replacement in contexts of data broadcasting. Li fi technology ppt free download as powerpoint presentation. As internet users almost double every year, there is an enormous load on radio spectrum that leads to congestion. Led lifi router prototype will generate super fast, unhackable wireless internet. Light fidelity lifi technology is a wireless communication system based on the use of visible light between the violet 800 thz and red 400 thz. With energy efficiency, long useful lifetime, full spectrum and dimming, lifi lighting applications. Lifi is a derivative of optical wireless communications owc technology, which uses light from lightemitting diodes leds as a medium to deliver network, mobile, highspeed communication in a similar manner to wifi.
In this technology, light is passed through transmission channel as it is the fastest medium. In the days where internet has become a major demand, people are in a search for wifi hotspots. A survey on lifi technology ieee conference publication. Data through illumination and thus data transmission. Light fidelity powerpoint presentationlifi ppt youtube. In this article we will share the lifi tutorial that covers lifi system basics. A free powerpoint ppt presentation displayed as a flash slide show on id. Lifi technology powerpoint templates w lifi technology. Nov 22, 2016 meet the revolutionary wireless technology that is 100 times faster than wifi. That is, it uses light instead of radio waves to transmit information. Download pdf papers for lifi seminar report and project report. However, lifi bulbs are outfitted with a chip that modulates the light imperceptibly for optical data transmission.
Lifi is transmission of data through illumination, sending data through a led light bulb that varies in intensity faster than human eye can follow german physicist, dr. The future technology in wireless communication 1691 interconnected data systems to monitor things like demand, grid integrity and core temperature. Lifi technology powerpoint ppt presentations powershow. Ppt wifi technology powerpoint presentation free to. I have made this report file on the topic lifi technology. View and download powerpoint presentations on lifi technology ppt. So we have the infrastructure available and already installed. I have tried my best to elucidate all the relevant detail to the topic to be included in the report. While in the beginning i have tried to give a general view about this topic. He used a table lamp with an led bulb to transmit a video of blooming flowers that was then projected onto a screen behind him. Pdf overview of lifi technology irjet journal academia.
Aug 14, 2017 this powerpoint presentation is on light fidelity. Lifi is a wireless technology holds the key to solving challenges faced by 5g. Unlike wifi which uses the radio part of the electromagnetic spectrum, lifi uses the optical spectrum i. It allows the integration of bidirectional lifi into small electronic devices and thus to widen the use of lifi.
Jan 24, 2014 in the days where internet has become a major demand, people are in a search for wifi hotspots. Find powerpoint presentations and slides using the power of, find free. Lifi, first coined in extends the concept of visible light communication vlc to achieve high speed, secure, bidirectional and fully networked wireless communications. Free seminar reports, ppt presentation topics and abstract. Abstract of lifi technology whether youre using wireless internet in a coffee shop, stealing it from the guy next door, or competing for bandwidth at a conference, youve probably gotten frustrated at the slow speeds you face when more than one device is tapped into the network. The technology is very new and was proposed by the german physicist harald haas in 2011. Posts about introduction of lifi technology written by sknit95. The name of technology is lifi which is also called as light fidelity. Lifilight fidelity technology teerthanker mahaveer university. An introduction to lifi technology history lifi vs wi.
Lifi is a new class of high intensity light source of solid state design bringing clean lighting solutions to general and specialty lighting. Proper monitoring can save huge benefits in terms of energy and economy obviously. Light fidelity lifi is a new short range optical wireless communication technology which provides the connectivity within a local network, by using lightemitting diodes leds to transmit data. It is a vlcvisible light communication, technology developed by team of. Synergies are harnessed as luminaries become lifi attocells resulting in enhanced wireless capacity providing the necessary connectivity to realise the internetofthings, and contributing to the key performance indicators for the fifth generation of cellular systems 5g and beyond. On the other hand, it has to be ensured that the lifi systems do not pose any health hazards and that they are correctly installed so that they do not create any emi.
The university of edinburghs lifi research and development centre lrdc is dedicated to accelerating the development of lifi as a major global industry, through creating the pipeline for innovative ideas, technologies, products and partnerships. Lifi can transmit at multiple gigabits, is more reliable, virtually interference free and uniquely more secure than radio technology such as wifi or cellular. Best pdf study papers on lifi technology explain the architecture, working, modulation techniques and comparison with wifi and vlc. This page covers advantages and disadvantages of lifi technology. To get better bandwidth, efficiency and speed, a new technology lifi has evolved. It works in three modes as mentioned above in the figure above. Lifi is designed to use led light bulbs similar to those currently in use in many energyconscious homes and offices. Comprehensive summary of modulation techniques for lifi. Pdf seminar report on li fi akanksha sharma academia.
This also makes it possible for smaller modems to be directly integrated into a bulb. Lifi technology in wireless communication revathi ganesan. Lifi or new life of data communication is a better alternative to wifi in wireless communication. Lifi is a paradigmshifting 5g technology sciencedirect. Visible light part of the electromagnetic spectrum. There has been a complete shift in wireless technology due to increase demand for faster and more secure and protected data transmission. However, lifi bulbs are outfitted with a chip that modulates the light imperceptibly for. An introduction to lifi technology history lifi vs. And instead of wifi modems, lifi would use transceiverfitted led lamps that can light a room as well as transmit and receive information.
The use of dongles will therefore no longer be necessary. My efforts and wholehearted cocorporation of each and everyone has ended on a successful note. Li fi technology seminar ppt with pdf report study mafia. This lifi tutorial covers lifi network architecture, lifi protocol stack, lifi phy, lifi mac, lifi bands, lifi modulation types ook, vppm, csk.
The lifi technology was invented by professor harald hass of university of edinburgh. The lifi technology uses unregulated spectrum of visible light that does not need licensing. Conclusion overcoming the four issues with radio waves in lifi efficiency capacity 0 times more spectrum than radio waves. Find powerpoint presentations and slides using the power of, find free presentations research about lifi technology ppt. Flickering avoidance and dimming control are considered in the variant modulation techniques presented. Mar 20, 2018 best pdf study papers on lifi technology explain the architecture, working, modulation techniques and comparison with wifi and vlc. Advantages of lifi technology,disadvantages of lifi technology. Today we are going to talk about the technology which promises to be the future upgradation of wifi. Lifi is a wireless optical networking technology that uses lightemitting diodes leds for data transmission. View lifi technology ppts online, safely and virusfree. Wireless technology is an alternative to wired technology, which is commonly.
What are the advantages and disadvantages of lifi technology. It is important to note that lifi supports user mobility and multiuser access. Lifi provides transmission of data through illumination by sending data. Lifi modulation techniques need to also satisfy illumination requirements.
It mentions benefits or advantages of lifi and limitations or drawbacks or disadvantages of lifi. Lifi is a new exemplar for photosensitive wireless technology to provide unp cse seminar topics. Best powerpoint templates download your favorites today. Lifi could offer safe, abundant connectivity for all areas of. Lifi is a new exemplar for photosensitive wireless technology to provide unprecedented connectivity within a localized data centric environment. Harald haas during his ted global talk, is bidirectional, high speed and fully networked wireless communications similar to wifi. It is a wireless optical networking technology which uses leds for data transmission. Also explore the seminar topics paper on lifi technology with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year computer science engineering or cse students for the year 2015 2016. In lifi the information is transferred through light signals instead of radio waves and mostly wifi plays an efficient role for wireless information coverage within the buildings whereas by using lifi we can provide the excel density data. This paper surveys the suitable modulation techniques for lifi including those which explore time, frequency and.
The term lifi was first coined by prof harald haas from edinburgh university, who demonstrated the technology at a ted technology, entertainment and design conference in 2011. Lifi also known as light fidelity is a technology for the wireless transmission of data between devices lifi uses light as a medium for transmission of data. Explore lifi technology with free download of seminar report and ppt in pdf and doc format. In simple terms, lifi can be thought of as a lightbased wifi. Sep 05, 2018 lifi also known as light fidelity is a technology for the wireless transmission of data between devices lifi uses light as a medium for transmission of data. Lifi is the abbreviation of light fidelity and was expressed by harald hass who was a. He used a table lamp with an led bulb to transmit a video of blooming flowers that. Contents introduction to lifi history of lifi implementation of lifi how it works lifi vs wifi application advantages limitation future developments conclusions. Lifi is a wireless communication technology that uses the infrared and visible light spectrum for high speed data communication. Get the most relevant papers for lifi seminar report. Lifi technology seminar report and ppt for cse students. Led lamps are the source used for encoding data by switching the light on and off during regular intervals to create a binary code.
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