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Final Year Seminar Project which is helpful for Btech students
- 1. LIGHT FIDELITY (LI-FI) TECHNOLOGY PresentedBy D. SaiTeja Reddy 20W91A1212
- 2. Contents What isLi-Fi Why is it required?? History. LI-FI Over WI-FI Working Advantages Disadvantages. Applications. Future. Conclusion.
- 3. WHAT IS LI-FI??? •LIFI(light fidelity) is a bidirectional wireless system that transmits data via LED or infrared light. • It was first unveiled in 2011 by Harald haas . • Its frequency is 800thz
- 4. History It allows wirelesscommunication without the use of radio waves, which can be dangerous in places like oil platforms, underwater and on planes Li-Fi can be thought of as a light-based Wi-Fi.
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- 6. How it’s work? A LiFi network uses the light from LED lamps to send data to a device, such as a laptop or tablet. The device has a receiver to pick up light signals and a transmitter to send light signals back to the lamp using infrared light.
- 8. WI-FI VERSUS LI-FI WI-FI uses radio waves. WI-FI uses routers and radio frequency to transfer and receive data Not secured (it can be hacked) Range is small costly LI-FI uses light. LI-FI uses led bulbs and light signals to transfer and receive data Secured( it cannot be hacked) Range is large cheap
- 9. ADVANTAGES It isimpossible to achieve more than 10Gbps, theoretically . Mostly powered by LEDs so it is cost efficient transmission of data is fast and easy. Increased efficiency Easily available More secured
- 10. DISADVANTAGES Light sourcereliance Limited range Interference Presence of light is essential There should be line of sight
- 11. Applications of li-fi •Underwater communications. • Health sector. • Internet anywhere. • Safety and management
- 12. Future of li-fi The future of Li-Fi technology is incredibly exciting. With its potential to revolutionize the way we communicate and connect with each other it could have a significant impact on various industries. Another industry that could benefit from LiFi technology is transportation.
- 13. CONCLUSION The possibilitiesare numerous and can be explored further. If this technology can be put into practical use, every bulb can be used something like a WI-FI hotspots to transmit wireless data.
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