Lifi light fidelity the future technology in wireless communication abstract whether youre using wireless internet in a coffee shop, stealing it from the guy next door, or competing for bandwidth at a conference, you have probably gotten frustrated at the slow speeds you face when more than one device is tapped into the network. Defense and security given the requirement for secure communication technology, vlc is emerging as the ideal technology for. Amoled technology consumes lesser power and also the refresh rate is very high than other counterparts. Proper monitoring can save huge benefits in terms of energy and economy obviously. The future technology in wireless communication 1691 interconnected data systems to monitor things like demand, grid integrity and core temperature. Lifi technology seminar report and ppt for cse students.
But so far, people can only access purelifis technology by plugging in a dongle to their laptop, which many users find. An architecture for wireless communication systems using. Working technology lifi is implemented using white led light bulbs which. Li fi light fidelity the future technology in wireless communication abstract whether youre using wireless internet in a coffee shop, stealing it from the guy next door, or competing for bandwidth at a conference, you have probably gotten frustrated at the slow speeds you face when more than one device is tapped into the network. Flexible display, ask latest information, abstract, report, presentation pdf,doc,ppt,flexible display technology discussion,flexible display paper presentation. Conclusion by using li fi in all the lights in and around a building, the technology could enable greater area of coverage than a single wi fi router. Madras institute of technology, anna university, chrompet. Aug 14, 2017 this powerpoint presentation is on light fidelity. Nonetheless, li fi is currently in the development zone and is being implemented quite successfully in aircraft cabins, hospitals and nuclear power plants and is predicted to arrive in our. Lifi can transmit at multiple gigabits, is more reliable, virtually interference free and uniquely more secure than radio technology such as wi fi or cellular. Unlike wifi which uses the radio part of the electromagnetic spectrum, lifi uses the optical spectrum i.
Lifi acts as a complement to wifi technology and can be implemented in the existing communication system with very low additional expenditure. Revathi ganesan, 3rd year, be, ece department college. Feb 19, 2014 li fi technology seminar reports and ppt topics. 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. In simple terms, lifi can be thought of as a lightbased wifi. You should do your own research additional to this information before presenting your seminar. Lifi refers to visible light communication vlc technology that uses light as medium to.
Also, although, lifi is supposed to be ten times cheaper than wifi, the former has quite high installation costs and ranks lower in the reliability area. Lifi technology in wireless communication revathi ganesan. In lifi the information is transferred through light signals instead of radio waves and mostly wi fi plays an efficient role for wireless information coverage within the buildings whereas by using lifi we can provide the excel density data. Abstract li fi that is light fidelity is one of the future technologies in wireless communication sector. Lifi could definitely change nfc near field communications allowing to transfer more data at higher speeds.
Lifi could offer safe, abundant connectivity for all areas of. Light fidelity lifi is a bidirectional, high speed and fully networked wireless communication technology similar to wifi. The lifi is a wireless communication system in which light is used as a carrier signal instead of traditional radio frequency as in. Lifi can transmit at multiple gigabits, is more reliable, virtually interference free and uniquely more secure than radio technology such as wifi or cellular. Patient monitoring in the hospital management using lifi. The term was coined by harald haas and is a form of visible light communication and a subset of optical wireless communications owc and could be a complement to rf communication wi fi or cellular network, or even a replacement in contexts of data broadcasting. Lifi is short for light fidelity, similar to how wifi is short for wireless fidelity. Light fidelity powerpoint presentationlifi ppt youtube.
Get ready for lifi, a technology 100 times faster than wifi. When purchasing goods in stores an encryption could be used to protect people ewallets from being scanned by someone else. Lifi is typically implemented using white led light bulbs. Pdf seminar report on li fi akanksha sharma academia. With such a high demand there has been a looming radio frequency spectrum crisis, which paved the way of the invention of a new technology. That is, it uses light instead of radio waves to transmit information. Radio frequency technology such as wifi is vulnerable to interference from a wide range of devices such as cordless phones, microwaves and neighbouring wifi networks. The proposed model helps in the patient monitoring in the hospitals and can be done by using the concept of li fi instead of the wi fi technology to avoid the frequency interference with the human body. We shall explain in this report the basic foundation of this new technology and its important applications.
Li fi technology, an introduction with the use of light radiating diodes lifi technology transfers data through wireless. As it were, lifi alludes utilizing the obvious light bit of the electromagnetic range to transmit data at super speed. The lifi technology can be used for various purposes, it matters the data transmission through leds thus all the screens which illuminate light can be served as a platform for data communication. 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. Introduction latest seminar topics for engineering cs. This page contains li fi technology seminar and ppt with pdf report. Light fidelity li fi is a bidirectional, high speed and fully networked wireless communication technology similar to wi fi. The screen of the mobile phone, television, bulbs can act as a source of light. Lifi, acronym of light fidelity, is a new wireless technology which has the ability to provide high. Jan 24, 2014 in this paper, the comparison is made between wi fi and li fi technology. 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.
Harald haas during his ted global talk, is bidirectional, high speed and fully networked wireless communications, like wi fi, using light. Download li fi technology complete documentation with ppt and pdf for. The response time of touch displays developed using this technology is far better compared to others. Harald haas during his ted global talk, is bidirectional, high speed and fully networked wireless communications, like wifi, using light. Lifi is the term some have used to label the fast and cheap. Lifi is a wireless optical networking technology that uses lightemitting diodes leds for data transmission. Free space optics fso and visible light communication. This emerging technology offers optical wireless communications by using visible light. 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. Radio frequency technology such as wi fi is vulnerable to interference from a wide range of devices such as cordless phones, microwaves and neighbouring wi fi networks. The world might eventually have to shift its reliance on wifi to lifi, an alternative technology that scientists say can reach speeds of 1 gbps in realworld use 100 times faster than.
Li fi is a subset of optical wireless communications owc and can be a complement to rf communication wi fi or cellular network, or a replacement in contexts of data broadcasting. It is useful in controlling traffic at traffic signals as it communicates with led lights of cars. Li fi is useful in aircraft because the lights present above head can be used for data transmission. Harald haas and dr mostafa afgani at the university of. Light fidelity li fi technology is a wireless communication system based on the use of visible light between the violet 800 thz and red 400 thz. Lifi light constancy is a noticeable light interchanges vlc innovation, which empowers rapid, bidirectional, and completely arranged remote correspondence in a comparable way to wifi remote devotion. Before starting if you do not know how wifi technology works and what are the pros and cons for that, i would suggest to read about invention of wifi answered by zishan khan on this post. Lifi is the abbreviation of light fidelity and was expressed by harald hass who was a german physicist. This paper also discusses the working, implementation and improvements in li fi technology. Free seminar reports, ppt presentation topics and abstract. The figure1 shows the environment with the lifi technology where light bulbs are used as a data communication medium to pc, laptop, tablet and pda as it all have photo detector connected to it as receiver. Namaskaar dosto, is video mein maine aapko lifi ke baare mein bataya hai. And instead of wi fi modems, lifi would use transceiverfitted led lamps that can light a room as well as transmit and receive information. In simple terms, li fi can be thought of as a lightbased wi fi.
Explore lifi technology with free download of seminar report and ppt in pdf and doc format. Li fi advantages largers bandwidth 10,000 times the radio bandwidth high efficiency more availability highly secure disadvantage presence of light is essential applications 1. Lifi is now part of the visible light communications vlc pan ieee 802. Lifi is a bidirectional, high speed and fully networked wireless optical communication and is a form of visible light communication. Overview of lifi technology irjetinternational research. Visible light part of the electromagnetic spectrum. Lifi is a new class of high intensity light source of solid state design bringing clean lighting solutions to general and specialty lighting. Lifi is a wireless technology holds the key to solving challenges faced by 5g. The term was coined by harald haas and is a form of visible light communication and a subset of optical wireless communications owc and could be a complement to rf communication wifi or cellular network, or even a replacement in contexts of data broadcasting. Section 2 discusses the introduction to li fi and wi fi. Seminar report on light fidelity technology for mca, electronics, communication students.
Drawbacks to the technology include the need for a clear line of sight, difficulties with mobility and the requirement that lights stay on for operation. Technology purelifi welcome to immersive connectivity. Nonetheless, lifi is currently in the development zone and is being implemented quite successfully in aircraft cabins, hospitals and nuclear power plants and is predicted to arrive in our. Lifi is a vlc, visible light communication, technology developed by a team of scientists including dr gordon povey, prof. For more on how lifi works, read this story by ieees the institute. The technology is very new and was proposed by the german physicist harald haas in 2011. Even though the lifi has high data rates, it has its own. Nov 30, 2015 namaskaar dosto, is video mein maine aapko li fi ke baare mein bataya hai. Li fi light powerled multiple data stream high speed technologies used in li fi. In li fi the information is transferred through light signals instead of radio waves and mostly wi fi plays an efficient role for wireless information coverage within the buildings whereas by using li fi we can provide the excel density data. The li fi is a wireless communication system in which light is used as a carrier signal instead of traditional radio frequency as in wi fi 18, 20. Seminar on lifi technology li fi or light fidelity is usually a vlc, visible light communication, engineering put together by some sort of staff regarding researchers which includes doctor gordon povey, prof. Lifi technology will in future enable faster, more reliable internet connections, even when the demand for.
And instead of wifi modems, li fi would use transceiverfitted led lamps that can light a room as well as transmit and receive information. Fortunately, the lifi provides high data rates, which solves many problems of the bandwidth requirements of the modern world. And instead of wifi modems, lifi would use transceiverfitted led lamps that can light a room as well as transmit and receive information. Lifi provides transmission of data through illumination by sending data. Li fi 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 wi fi. And instead of wi fi modems, li fi would use transceiverfitted led lamps that can light a room as well as transmit and receive information. 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. Lifi is designed to use led light bulbs similar to those currently in use in many energyconscious homes and offices. Li fi technology we prepared and published this seminar abstract for final year engineering students seminar research. Where there is difficult to amateur optical fibers li fi is used. Why lifi light internet could replace wifi in 10 years.
Shinde amrutvahini polytechnic, sangamner professor, dept. Lifi or light fidelity is usually a vlc, visible light communication, engineering put together by some sort of staff regarding researchers which includes doctor gordon povey, prof. Li fi is the abbreviation of light fidelity and was expressed by harald hass who was a german physicist. Jul 16, 2016 li fi is a bidirectional, high speed and fully networked wireless optical communication and is a form of visible light communication. Lifi technology is being developed into a ubiquitous systems technology, consisting of application specific combinations of light transmitters, light receivers including solar cells, efficient computational algorithms and networking capabilities that can be deployed in a wide range of communication scenarios and in a variety of device platforms. Unlike wi fi which uses the radio part of the electromagnetic spectrum, li fi uses the optical spectrum i. May 29, 2015 also, although, li fi is supposed to be ten times cheaper than wi fi, the former has quite high installation costs and ranks lower in the reliability area. Haas, a mobile communications professor at the university of edinburgh, demonstrated how lightbulbs could be used as digital routers by projecting a highdefinition. Li fi provides transmission of data through illumination by sending data.
Lifi technology greatest upcoming technology tech grilled. The proposed model helps in the patient monitoring in the hospitals and can be done by using the concept of lifi instead of the wifi technology to avoid the frequency interference with the human body. However, lifi bulbs are outfitted with a chip that modulates the light imperceptibly for optical data transmission. Li fi technology seminar ppt with pdf report study mafia. Lifi can already send 10 to 50 times the amount of data that wifi can in a single area, depending on the exact setup, but laser leds could boost that as high as 100 times. Unlike wifi, the technology uses visible light spectrum instead of the efficiency of opportunistic cellularlifi traffic offloading. A seminar report on lifi the latest technology in wireless communication for the partial fulfillment of b. The new li fi technology can be well managed very easily and it is pretty simple. With energy efficiency, long useful lifetime, full spectrum and dimming, lifi lighting applications. Lifi signals can be defined by the area of illumination, which means interference is much simpler to avoid and even stop altogether.
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