Li-FiTechnology Introduction:Day by dayactivities is to send data onedestination to other destination. Li-Fi technology has another benefits over Wi-Fi, for example safer fornuclear energy-producing station, thermal energy-producingstation in that places Wi-Fi are not used.1.
Some energy-producing station in which RFwave,s is injurious and it may reason of disaster.Theway of communication in such stations only visible light spectrum can beused.There are four working methods of Li-Fi and Wi-Fi are, Efficieny,availability,capcity and security Wifi and Lifi technology both uses the electromagneticspectrum for communication ,but WI-FI uses radio wave,s spectrum.2.(Thepresent wireless networks that linked us internet. Working is slow when linkedto several devices.
As the number of devices increases and also internet speedincreases, that the bandwidth available makes it more and more difficult to enjoy high data transfer ratesfor a secure network. As a radio wavesare just a small part of spectrum.)Solution of this problem is by working onLifi technology.Li-Fi is a data transmission through by taking the fiber out of fiber optics bysending data through an LED light bulb 3 that make the faster speed ascompare to human eye can follow. Li-Fi is the term of fast and cheap wireless communicationsystem, which is advanced version ofWi-Fi. Li-Fi using visible light inspect of Gigahertz radio waves for data transfer. Fig.
1. Li-Fi bulb 3. Thisidea of Li-Fi was proposed by a German physicist, Harald Hass, which heconcluded to as ?data through illumination. This technology Li-Fi was firstused by Haas in his TED Global talk on Visible Light Communication. Accordingto Hass, the light, which he concluded that the D-Light, can be used to producedata rates higher than 10 megabits per second which is more as more faster than our average broadband connection4. Li-Fi can relieving the heavy loads which the current wireless systems face.
LIFI offers much larger frequency band (300 THz) compared to that available inRF communications (300GHz). As more data coming through the visible lightspectrum could concerns that the electromagnetic waves affect our health. Li-Fican be new technology as for future where data for laptop,mobiles and tablets will be transmit through thelight in a room. Security cannot bethe issue because if you cannot see thelight, you cannot access the data.
As aresult, it can be used in high security military areas.
