Lifi is an optical communication technology where as wifi is a radio communication technology. It is a wireless optical networking technology which uses. Recent news report that lifi is 100 times faster than wifi. Harald haas during his ted global talk, is bidirectional, high speed and fully networked wireless communications similar to wifi. It is a vlcvisible light communication, technology developed by team of. 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. Where to download lifi technology documentation lifi technology documentation lifi explained in this video, you will learn about the lifi technology, which is the abbreviation of the term light fidelity.
Light fidelity powerpoint presentationlifi ppt youtube. 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. My efforts and wholehearted cocorporation of each and everyone has ended on a. 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. When we began to dive deeper, a lot of unknown facts became apparent. Let us understand them individually before we derive a brief difference between them.
Hardware systems powered by purelifi technology are available to purchase. Lifi short for light fidelity is wireless communication technology which utilizes light to transmit. The technology is very new and was proposed by the german physicist harald haas in 2011. Lifi is a wireless technology holds the key to solving challenges faced by 5g. Following are the features of lifi technology as depicted in the figure1. 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. Data through illumination and thus data transmission.
Lifi provides transmission of data through illumination by sending data. Li fi technology seminar ppt with pdf report study mafia. Lifi technology seminar report and ppt for cse students. We collected most searched pages list related with lifi technology ppt. 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. View and download powerpoint presentations on lifi technology ppt. Li fi technology ppt free download as powerpoint presentation. Lifi light fidelity based smart communication system. 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. And instead of wifi modems, lifi would use transceiverfitted led lamps that can light a room as well as transmit and receive information.
That is, it uses light instead of radio waves to transmit information. Lifi is a new class of high intensity light source of solid state design bringing clean lighting solutions to general and specialty lighting. Advantages of lifi technology,disadvantages of lifi technology. 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 coverage in. Collision avoidance between vehicles through lifi based. This page covers advantages and disadvantages of lifi technology. So we have the infrastructure available and already installed. The future technology in wireless communication 1689 figure. While in the beginning i have tried to give a general view about this topic.
As told earlier lifi uses light to transmit data unlike radio waves. Led lifi router prototype will generate super fast, unhackable wireless internet. However, lifi bulbs are outfitted with a chip that modulates the light imperceptibly for optical data transmission. This lifi tutorial covers lifi network architecture, lifi protocol stack, lifi phy, lifi mac, lifi bands, lifi modulation types ook, vppm, csk.
My efforts and wholehearted cocorporation of each and everyone has ended on a successful note. Genesis of lifi at ted global demonstration by haas, where he achieved 10 mbps transfer rate increasing it further to 123 mbps after a month, he successfully demonstrated it by blocking the light source to block the video content received by the projector. Free seminar reports, ppt presentation topics and abstract. Product section in client versatile area fig 3, likewise associated with lifi 1 module through otg3, gets the points of interest of the item buy. 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. It mentions benefits or advantages of lifi and limitations or drawbacks or disadvantages of lifi.
Ppt wifi technology powerpoint presentation free to. He used a table lamp with an led bulb to transmit a video of blooming flowers that. Lifi can transmit at multiple gigabits, is more reliable, virtually interference free and uniquely more secure than radio technology such as wifi or cellular. The use of dongles will therefore no longer be necessary. Though lifi was first publicly disclosed in august 2011, the first patent around the technology was filed in 2006. The assumption was that the average wifi speeds are 10 mbps, and that lifi can be as fast as 1 gbps. Conclusion overcoming the four issues with radio waves in lifi efficiency capacity 0 times more spectrum than radio waves. In this article we will share the lifi tutorial that covers lifi system basics. The lifi technology uses unregulated spectrum of visible light that does not need licensing. Hardware powered by purelifi offers multiple access, secure. Explore lifi technology with free download of seminar report and ppt in pdf and doc format.
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. It is important to note that lifi supports user mobility and multiuser access. The term li fi refers to visible light communication vlc technology that uses light as medium to. Lifi is the abbreviation of light fidelity and was expressed by harald hass who was a german physicist. I have tried my best to elucidate all the relevant detail to the topic to be included in the report. International research journal of engineering and technology irjet. The difference between lifi and vlc is vlc has a unidirectional, pointtopoint light communication at low data rates. This also makes it possible for smaller modems to be directly integrated into a bulb. In this technology, light is passed through transmission channel as it is the fastest medium. Lifi is designed to use led light bulbs similar to those currently in use in many energyconscious homes and offices.
Since the communication is based on visible light which is the most used part in electromagnetic spectrum for communication. With energy efficiency, long useful lifetime, full spectrum and dimming, lifi lighting applications. 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. Moreover data speed of this lifi is extremely fast when compared to other means of communication. I have made this report file on the topic lifi technology. Lifi is a paradigmshifting 5g technology sciencedirect. Li fi technology, implementations and applications pdf. Not professor harald haas, who is considered as the father of lifi technology. Lifi, which uses visible light to transmit signals wirelessly, is an emerging technology poised to compete with wifi. Lifi is a wireless optical networking technology that uses lightemitting diodes leds for data transmission. Lifi technology powerpoint ppt presentations powershow. Contents introduction to lifi history of lifi implementation of lifi how it works lifi vs wifi application advantages limitation future developments conclusions. Section 3 provides the design of transmitter and receiver for lifi based v2v communication system on proteus software. View lifi technology ppts online, safely and virusfree.
Lifilight fidelity technology teerthanker mahaveer university. It allows the integration of bidirectional lifi into small electronic devices and thus to widen the use of lifi. A free powerpoint ppt presentation displayed as a flash slide show on id. Lifi is a wireless communication technology that uses the infrared and visible light spectrum for high speed data communication. This presentation describes about the basic concepts of lifi technology and its important applications authorstream presentation go premium. Wireless technology is an alternative to wired technology, which is commonly. Lifi is the abbreviation of light fidelity and was expressed by harald hass who was a. Lifi hardware offers the ability to enhance mobile devices and lighting infrastructures with access to the capabilities of lifi. Find powerpoint presentations and slides using the power of, find free presentations research about lifi technology ppt. It is based on a simple technique of illumination communication. What are the advantages and disadvantages of lifi technology. Visible light part of the electromagnetic spectrum. High speed optical wireless technology lifi technology visible light led. Lifi, first coined in extends the concept of visible light communication vlc to achieve high speed, secure, bidirectional and fully networked wireless communications.
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