A few years ago, if someone told you that one day you will be able to
use your light bulb as a means to connect to the internet, you would have
thought that person to be a nutcase. And if someone said that one day you will
be connecting to the web with data speeds as fast as 1GBps, you would have
assumed that person to be joking! But today, LiFi internet has
become a reality and its many virtues have made it one of the worthiest
successors to WiFi technology.
The industry of LiFi companies is expected
to be worth $113 billion by 2022 as more and more people demand for the
high-speed, low maintenance, eco-friendly form of web connectivity that this
tech offers. However, understanding this new means of transforming illumination
into communication is no small feat.
Let’s take a closer look at LiFi and
figure out just what it is that about this technology that’s making it so
popular in the market today.
Understanding Li Fi Internet-Taking
Illumination into the Realm of Communication:
The technology that we have come to know as LiFi is the brainchild of
German physicist Harald Haas, who is also a professor at the University of
Edinburgh! His unveiling of the tech at TED Conference in 2011 was defined as
the biggest game changing moment of this decade.
LiFi network functions in the following way:-
When a constant stream of current is applied to a light bulb, it emits a
constant stream of photons that we have come to recognize as visible light. If
this constant stream is made to fluctuate, changes in this stream of visible
light can be detected by a photo-detector device and converted back to
electrical current. The fluctuations in light can be so miniscule that they
will be invisible to the human eye. And these fluctuations can be used to
transmit information and hence, provide internet connectivity to devices. In
short, a humble light bulb can become your means to connect to the web!
Comparing Wifi to Lifi Networks:
In order to get an understanding of which tech is superior, one needs to
compare WiFi and LiFi on the following points for analysis:-
- Speed: The 1GBps connectivity speed offered by LiFi internet leaves WiFi way behind. Moreover, Moreover, the visible light spectrum is 1,000 times larger than the 300 GHz of RF spectrum which helps in gaining high speed.
- Energy Efficiency: Unlike WiFi that needs a separate router for transmitting signals, LiFi networks make use of an existing piece of tech that is already a part of every indoor and outdoor establishment – the light bulb. LED bulbs are either ways energy efficient and using them to provide web connectivity is like killing two birds with one stone.
- Security: One of the biggest advantages of LiFi is its capability of creating secured network environments. Since visible light cannot permeate walls, the web network remains inaccessible to anyone outside the room where the LiFi product is installed. WiFi, on the other hand, is insecure and can be accessed from a considerable distance too!
Li Fi
companies offering
smart and efficient web connectivity options are definitely here to stay. This
technology is poised to completely revolutionize the way we interact with the
internet, don’t you think? Make LiFi a part of your home/office today.
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