Li-Fi TechnologyBy

Vivek kumar jhaReg no-

1001215240branch- CSE

Contents

Abstract Introduction Drawbacks Of Before Technologies Different Between The Technologies Working process Applications Advantages Conclusion

Abstract One germen phycist. Harald Haas has come up with

a solution he calls “data through illumination” –taking the fibber out of fibber optic by sending data through an LED light bulb that varies in intensity faster than the human eye can follow. It’s the same idea band behind infrared remote controls but far more powerful. Haas says his invention,

which he calls D- LIGHT, can produce data rates faster than 10 megabits per second, which is speedier than your average

broadband connection.

Introduction

Li-Fi means “Light Fidelity”.

At the heart of this technology is a new generation of high brightness light-emitting diodes

It is possible to encode data in the light by varying the rate at which the LEDs flicker on and off to give different strings of 1s and 0s.

Drawbacks Of Before Technologies

AvailabilityCapacity

SecurityEfficiency

Different Between The Technologies

Working process

LIFI offers an integrated light source that is straightforward to integrate into a projector. In this example LIFI consists of 5 primary sub-assemblies:

Printed circuit board (PCB) RF power amplifier (PA) Bulb Optics

Enclosure

AvailabilityCapacity

SecurityEfficiency

Applications

Advantages

High SecurityEasy To UseFast Data Transfer Reliable Harmless nessLow Cost

Conclusion

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 a Wi-Fi hotspot to transmit wireless data and we will proceed toward the cleaner, greener, safer and brighter future.

Reference

http://marginalrevolution.com/marginalrevolution/2011/08/new-wireless-technologies-lifi-and-dido.html

http://www.ted.com/talks/harald_haas_wireless_data_from_every_light_bulb.html

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