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. My efforts and wholehearted cocorporation of each and everyone has ended on a successful note. Though lifi was first publicly disclosed in august 2011, the first patent around the technology was filed in 2006. International research journal of engineering and technology irjet. He used a table lamp with an led bulb to transmit a video of blooming flowers that. Lifi is a wireless communication technology that uses the infrared and visible light spectrum for high speed data communication. According to 3 lifi and vlc used a similar medium as a data communication that is light. Not professor harald haas, who is considered as the father of lifi technology.
Lifi is a wireless technology holds the key to solving challenges faced by 5g. Lifi is an optical communication technology where as wifi is a radio communication technology. Lifi is the abbreviation of light fidelity and was expressed by harald hass who was a german physicist. The assumption was that the average wifi speeds are 10 mbps, and that lifi can be as fast as 1 gbps. 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. Lifi light fidelity based smart communication system. It allows the integration of bidirectional lifi into small electronic devices and thus to widen the use of lifi. Section 3 provides the design of transmitter and receiver for lifi based v2v communication system on proteus software. Lifi provides transmission of data through illumination by sending data.
Harald haas during his ted global talk, is bidirectional, high speed and fully networked wireless communications similar to wifi. Ppt wifi technology powerpoint presentation free to. Wireless technology is an alternative to wired technology, which is commonly. Since the communication is based on visible light which is the most used part in electromagnetic spectrum for communication. What are the advantages and disadvantages of lifi technology.
Lifi technology powerpoint ppt presentations powershow. Recent news report that lifi is 100 times faster than wifi. 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. Let us understand them individually before we derive a brief difference between them. Led lifi router prototype will generate super fast, unhackable wireless internet. I have made this report file on the topic lifi technology. This also makes it possible for smaller modems to be directly integrated into a bulb. The definition for lifi can be given as lifi is high speed bidirectional networked and mobile communication of data using light. The technology is very new and was proposed by the german physicist harald haas in 2011. Advantages of lifi technology,disadvantages of lifi technology. Conclusion overcoming the four issues with radio waves in lifi efficiency capacity 0 times more spectrum than radio waves. Lifi, first coined in extends the concept of visible light communication vlc to achieve high speed, secure, bidirectional and fully networked wireless communications.
Lifi is a paradigmshifting 5g technology sciencedirect. Lifi technology seminar report and ppt for cse students. 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. I have tried my best to elucidate all the relevant detail to the topic to be included in the report. Lifi is a new class of high intensity light source of solid state design bringing clean lighting solutions to general and specialty lighting. Unlike wifi which uses the radio part of the electromagnetic spectrum, lifi uses the optical spectrum i.
It mentions benefits or advantages of lifi and limitations or drawbacks or disadvantages of lifi. 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. As told earlier lifi uses light to transmit data unlike radio waves. Moreover data speed of this lifi is extremely fast when compared to other means of communication. Li fi technology seminar ppt with pdf report study mafia. In this article we will share the lifi tutorial that covers lifi system basics. Lifi hardware offers the ability to enhance mobile devices and lighting infrastructures with access to the capabilities of lifi. 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. Lifi is designed to use led light bulbs similar to those currently in use in many energyconscious homes and offices. The difference between lifi and vlc is vlc has a unidirectional, pointtopoint light communication at low data rates. Collision avoidance between vehicles through lifi based.
View and download powerpoint presentations on lifi technology ppt. While in the beginning i have tried to give a general view about this topic. We collected most searched pages list related with lifi technology ppt. Hardware systems powered by purelifi technology are available to purchase. 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.
When we began to dive deeper, a lot of unknown facts became apparent. Lifi could transmit up to 100 gbps and possibly higher, but this would require a change in lighting technology. 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. Li fi technology ppt free download as powerpoint presentation. Lifi is the abbreviation of light fidelity and was expressed by harald hass who was a. It is a vlcvisible light communication, technology developed by team of. In this technology, light is passed through transmission channel as it is the fastest medium. And instead of wifi modems, lifi would use transceiverfitted led lamps that can light a room as well as transmit and receive information. 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. Contents introduction to lifi history of lifi implementation of lifi how it works lifi vs wifi application advantages limitation future developments conclusions. Find powerpoint presentations and slides using the power of, find free presentations research about lifi technology ppt. The lifi technology uses unregulated spectrum of visible light that does not need licensing.
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. Are you looking for lifi technology ppt free download. So we have the infrastructure available and already installed. Free seminar reports, ppt presentation topics and abstract. Li fi technology, implementations and applications pdf. 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.
It is a wireless optical networking technology which uses. Visible light part of the electromagnetic spectrum. Data through illumination and thus data transmission. My efforts and wholehearted cocorporation of each and everyone has ended on a. Lifi, which uses visible light to transmit signals wirelessly, is an emerging technology poised to compete with wifi. Lifi short for light fidelity is wireless communication technology which utilizes light to transmit. Hardware powered by purelifi offers multiple access, secure. 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. View lifi technology ppts online, safely and virusfree. With energy efficiency, long useful lifetime, full spectrum and dimming, lifi lighting applications. Lifi is a wireless optical networking technology that uses lightemitting diodes leds for data transmission.
The future technology in wireless communication 1689 figure. A free powerpoint ppt presentation displayed as a flash slide show on id. It is based on a simple technique of illumination communication. That is, it uses light instead of radio waves to transmit information. The term li fi refers to visible light communication vlc technology that uses light as medium to. This presentation describes about the basic concepts of lifi technology and its important applications authorstream presentation go premium. Light fidelity powerpoint presentationlifi ppt youtube. Explore lifi technology with free download of seminar report and ppt in pdf and doc format.