What is Li-Fi?
•Li-Fi is transmission of data through illumination, ie sending data through a LED light bulb that varies in intensity faster than human eye can fllow
•Li-Fi :- LIGHT FIDEALITY
LI-FI INTRODUCTION
•Li-Fi is high speed bi-directional networked and mobile communication of data using light. LiFi comprises of multiple light bulbs that form a wireless network, offering a substantially similar user experience to Wi-Fi except using the light spectrum.
How Li-Fi Works?
•Li-Fi can be thought of as a light-based Wi-Fi. That is, it uses light instead of radio waves to transmit information.
•And instead of Wi-Fi modems, Li-Fi would use transceiver-fitted LED lamps that can light a room as well as transmit and receive information.
•Thus every light source will works as a hub for data transmission.
•LiFi can work indoors, outdoors, with the lights dimmed and is not strictly line-of-sight technology. pureLiFi’s technology is also LED agnostic which means it works with many off-the-shelf LED’s.
Li-Fi Concept
Capacity:-
•Radiowaves
•Cost
and Expensive
•Less
Bandwidth compared to other spectrums
•Insufficient
spectrum for increasing data
Availability:-
•Available
within the range of Base stations
•Limited
availabity
•Unavailable
in aircrafts
Security:-
•Less
secure (passes through the walls)
Comparision Between Li-Fi and Wi-Fi
•Li-Fi can
be thought of as light-based Wi-Fi.That is, it uses light instead of radio wave
to transmit information.
•Instead
of Wi-Fi modems, Li-Fi
would use transceiver-fitted LED lamps that can light a room as well as
transmit and receive information.
•Wi-Fi
is great for general wireless coverage within buildings and Li-Fi is
ideal for high density wireless data coverage in confined area and for
relieving radio interference issues.
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