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The Future of Wireless: Li-Fi Technology
- 1. The Future Of Wireless Technology Light Fidelity Shamil Ahammad K S7 | 25| 90012065
- 2. Introduction Research Began in 1990s Publicly introduced and demonstrated in July 2011 at Global TED Talk 5G Optical Communication No optical fibre Wireless Communication
- 3. Introduced Publicly In July 2011 Global TED Talk Prof. Harald Haas Professor, University of Edinburgh
- 4. Li-Fi is a Visible Light Communication
- 5. Present Scenario of Radio-spectrum CAPACITY BANDWIDTH SHORTAGE AVAILABILITYEFFICIENCY SECURITY
- 6. Capacity ❖ Wireless Transmission Is Through Radio-waves ❖ Limited And Expensive ❖ Limitations Of Range ❖ Less Data Density
- 7. Efficiency ❖ 1.8 Million Cellular Radio Stations ❖ Consume Massive Energy ❖ Most Energy Used For Cooling Base Stations ❖ Base Station Have Only 5% Efficiency
- 8. Availability ❖ Issues In Aerospace ❖ Limited In Marine Applications ❖ Limitations In Petrochemical Plants ❖ Environmental Problems of Radio-spectrum
- 9. Security ❖ Penetrate Through Walls ❖ Hackers Easily Hacks ❖ Can Be Intercepted
- 10. Bandwidth Issues 1.8 Million+ 6 Billion+ Radio-spectrum is congested and the demand doubles every year, it shows that capacity is drying up
- 11. Why Visible Light Communication Gamma Rays are dangerous X-Rays has health issues Ultraviolet can be used only were humans aren't present Infrared has heat radiation issues and using high power causes health problems
- 13. Light Fidelity (Li-Fi) Future of wireless technology Wireless data transmission through illuminations Visible Light for communication Intensities modulates in a very higher rate Very faster and Greener Chaos theory implemented Li-Fi are Extremely secure
- 14. Basic Concepts of Li-Fi Faster switching On and Off of LEDs in less than 1 microsecond Human Eyes can't detect those variations This invisible On-Off activities enables binary transmission Switching On = Logical '1' Switching Off = Logical '0'
- 15. Li-Fi Transmitter Four Primary Assemblies LED Bulb RF Power Amplifier Circuit Circuit Board Aluminium Enclosure Ultra Parallel Data Streaming Is Used
- 16. Ultra Parallel Transmission • Using Arrays of Ultra Parallel LEDs for data transmission • Mixing Red, Green, Blue Lights To Alter The Frequencies • So Each frequency encode different data Promise Speed of 10Gbps Seamlessly Streams 3D-4K Videos UK Research Report
- 17. O-OFDM Optical Orthogonal Frequency Division Multiplexing
- 19. Li-Fi Receiver Photo Detectors with Signal Amplifier and Processing Circuits
- 22. Speed Comparison 0Gbps 2.5Gbps 5Gbps 7.5Gbps 10Gbps 12.5Gbps Bluetooth Wi-Fi 802.11N 4G USB 3.0 Li-Fi
- 24. Li-Fi Smartphone Prototype Demonstrated at Consumer Electronics Show, LA 2014
- 25. Tele-Medicine Medical Technology has lagged behind the rest of the wireless world Interferences from cell phones block signals to the monitoring equipment Helps faster Telemedicine
- 26. Airlines Zero Percent Interference Provides high-speed Internet
- 27. Smarter Power Plants Radio communications are bad for sensitive areas And Power-plants require faster communication Li-Fi is safer, abundant, less power consumption
- 29. Keep You Informed and Save Lives
- 30. Communications in Rural Area
- 31. Green Information Technology Communication Safety Multi User Communication Lighting Point Hotspots Traffic Information Directly To The Vehicles Uses in Various Areas
- 32. Recent Updates
- 33. Recent Updates
- 34. Leading Companies Behind Research
- 35. pureLiFi Products Li-1st LiFi Transmitter Li-Flame Receiver Ceiling Unit Li-Flame Receiver Desktop Unit
- 37. Advantages Speed Greater Than 10Gbps Seamlessly streams 3D-4KHD video Can be used almost everywhere, where RF signals are restricted Energy Efficient Cost efficient Excellent alternative to Radio Waves High Availability High Data Density More Secure
- 38. Challenges facing Cannot Penetrate Solid Objects Difficulties On Back Transmitting The Received Light Interference from external sources Presence of light for late night use Line of Sight Necessary in Most of the Cases
- 39. Conclusion Numerous Possibilities And Can Be Explored Further Every bulb can be used to a WiFi hotspot Greener-Cleaner-Safer Communication Currently Attracting a Great Deal of Interest Solves the Issues of Radio Waves, A an Alternative More Reliable And High Speed Larger Bandwidth A Lot Of Applications
- 40. Reference [1] Prof. Harald Haas’s pureLiFi project website, www.purelifi.com [2] http://en.wikipedia.org/wiki/Li-Fi [3] http://teleinfobd.blogspot.in/2012/01/what-is-lifi.html [4] technopits.blogspot.comtechnology.cgap.org/2012/01/11/a-lifi-world/ [5] www.lificonsortium.org/ [6] the-gadgeteer.com/2011/08/29/li-fi-internet-at-thespeed-of-light/ [7] en.wikipedia.org/wiki/Li-Fi [8] www.macmillandictionary.com/buzzword/entries/Li-Fi.html [9] dvice.com/archives/2012/08/lifi-ten-ways-i.php [10] Will Li-Fi be the new Wi-Fi?, Scientist Jamie Condliffe, 28 July 2011 [11] ://www.digplanet.com/wiki/Li-Fi [12] ”Visible-light communication: Tripping the light fantastic: A fast and cheap optical vers ion of Wi-Fi is coming”, Economist, dated 28Jan 2012
- 41. THANK YOU
Editor's Notes
- Good afternoon to all Here I am introducing a new emerging technology light fidelity Most of the people among may be unaware about these As wireless fidelity called wifi, light fidelity is called lifi it is an optical version of wireless communication and is the future of wireles communication, and have the possibility to change entire communication system The transmission of data through illumination by taking the fiber out of fiber optics It has got wide varities of applications
- Actually The researches has begun in 1990s This technology was Publicly introduced in 2014 Lifi is wireless and optical It is the next level of communication, called fifth generation optical communication
- In 2011 global ted talk, prof.harald haas, recognized as founder of lifi , demonstrated a prototype Li-Fi is the term some have used to label the fast and cheap wireless communication system, the optical version of Wi-Fi. The term was first used in this context by Harald Haas in his TED Global talk on visible light communication. Lifi is devloped by a of scientists including Prof.harald haas, mustafa afgani' dr.gorden povey Lifi is bidirectional, high speed and fully networked wireless communications similar to Wi-Fi. Also 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.
- Lifi uses visible light to communicate instead of radio waves by illuminating LEDs Visible lights are omnipresent On street light – cars – homes – office – everywhere Utilising these advantages delivers us internet everywhere Which is faster, cheaper, energy efficient
- Imagine your are in a lab of a big company, doing a secret project . And you are using radio wave wireless communication The Radio waves penetrate through walls, it’s a good thing but Regarding the security issues, some body who got bad intentions Can hack through the signal and can stole your data
- 2G, 3G, 4G All Are Running Out Of Spectrum
- Uk research report says that, if the LEDs of red green blue are placed in a ultra parallel array which possess an ultra parallel transmission by altering the three led frequencies How it is done… It is achieved by o-ofdm
- Optical Orthogonal frequency-division multiplexing (OFDM) is a method of encoding digital data on multiple carrier frequencies. O-OFDM has developed into a popular scheme for wideband optical communication, This scheme used as a optical digital multi-carrier modulation method. A large number of closely spaced orthogonal sub-carrier signals are used to carry data[1] on several parallel data streams or channels. Each sub-carrier is modulated with a conventional modulation scheme (such as quadrature amplitude modulation or phase-shift keying) at a low symbol rate, maintaining total data rates similar to conventional single-carrier modulation schemes in the same bandwidth.
- Bluetooth 4mbps Wifi 800mbps 4G 1Gbps Usb 3.0 5Gbps Lifi 10Gbps
- Wysips crystal component is photo detector It not only receive data but also charges phone 15% increased battery life
- For a long time, medical technology has lagged behind the rest of the wireless world. Operating rooms do not allow Wi-Fi over radiation concerns, and there is also that whole lack of dedicated spectrum. While Wi-Fi is in place in many hospitals, interference from cell phones and computers can block signals from monitoring equipment. Li-Fi solves both problems: lights are not only allowed in operating rooms, but tend to be the most glaring (pun intended) fixtures in the room. And, as Haas mentions in his TED Talk, Li-Fi has 10,000 times the spectrum of Wi-Fi, so maybe we can, delegate red light to priority medical data. Code Red!
- Airline Wi-Fi, Nothing says captive audience likes having to pay for the "service" of dial-up speed Wi-Fi on the plane. And don’t get started on the pricing. The best have heard so far is that passengers will "soon" be offered a "high-speed like" connection on some airlines. United is planning on speeds as high as 9.8 Mbps per plane. Uh, we have twice that capacity in our living room. And at the same price as checking a bag, we expect it. Li-Fi could easily introduce that sort of speed to each seat's reading light.
- Underwater ROVs, those favorite toys of treasure seekers and James Cameron, operate from large cables that supply their power and allow them to receive signals from their pilots above. ROVs work great, except when the tether isn’t long enough to explore an area, or when it gets stuck on something. If their wires were cut and replaced with light — say from a submerged, high-powered lamp — then they would be much freer to explore. They could also use their headlamps to communicate with each other, processing data autonomously and referring findings periodically back to the surface, all the while obtaining their next batch of orders.
- It is developer kit
- The possibilities are numerous and can be explored further. If his technology can be put into practical use, every bulb can be used something like Wi-Fi hotspot to transmit wireless data and we will proceed toward the cleaner, greener, safer and brighter future. The concept of Li-Fi is currently attracting a great deal of interest, not least because it may offer a genuine and very efficient alternative to radio-based wireless. As a growing number of people and their many devices access wireless internet, the airwaves are becoming increasingly clogged, making it more and more difficult to get a reliable, high-speed signal. This may solve issues such as the shortage of radio-frequency bandwidth and also allow internet where traditional radio based wireless isn’t allowed such as aircraft or hospitals. One of the shortcomings however is that it work in direct line of sight