ADVANTAGES OF LI-FI TECHNOLOGY Advantages
Li-Fi is ideal for
high density wireless data coverage in confined area and for reducing radio
interference issues. Its features include benefits to the capacity, energy efficiency,
safety and security of a wireless system; now, we will talk briefly about each
one of these advantages.1. Efficiency
The efficiency of
each radio station is just 5%due to the fact that most of the energy is used
for the cooling system in base of the radio station. Li-Fi is highly efficient
because LED consumes less energy. It is effective in terms of low
cost, low required energy and for various Environments. In this topic there are
some main and important points:
ü Low cost: Requires
fewer components than radio technology, due to the cheap price of the LEDs and
Digital components compared with the microwave equipment.
ü Energy: LED
illumination is already efficient and the data transmission does not requires,
additional power because most energy dissipation in LEDs requires little amount
of energy.
ü Environment: RF
transmission and propagation in water is extremely difficult but Li-Fi works
well in this environment.
2.
Capacity
Any lighting devices
like car lights, ceiling lights, street lamps, etc. are used as a hotspot. It
means that any light spread internet using VLC which helps us to lower cost
architecture for a hotspot. The most important issues here are
Bandwidth, Data density and speed.
ü Bandwidth: The
visible light spectrum more abundant 10,000 times compared with the RF
spectrum..
ü Data density: Li-Fi
can achieve about 1000 times the data density of Wi-Fi because visible light
can be well contained in a tight illumination area, whereas RF tends to spread
out and cause interference.
ü High speed, Very
high data rates can be achieved as high as 500mbps or 30GB per minute due to
the low interference, high device bandwidths and high intensity optical output.
3.
Safety
Light is all around
us – it is a natural part of life – and as such there are no health concerns
associated with its use as a communications medium. It never gives any side
effects on any living thing like radio waves and other communication waves
which can dangerously interfere with electronic circuits and have effects on
birds and humans. [10]
4.
Security
“If
you can’t see the light, you can’t access the data!”
Because
of the signal will not travel through walls, it is difficult to eavesdrop on
Li-Fi signals. You can also see where the data is going, so there is no need
for additional security such as pairing for RF interconnections like Bluetooth. NEXT COMING:::Applications of Li-Fi
