Telecommunications
is constantly innovating to provide users with ever more powerful and effective
solutions and the tools they need to manage them. One of these new technologies
is Li-Fi (Light Fidelity) technology, a fast and inexpensive telecommunications
system based on wireless technology that transmits data bi-directionally faster
than the well-known Wi-Fi technology. and that it is postulated as its
alternative. techqueer
This new
telecommunications technology was presented in 2011 by German engineer Harald
Haas during a TED conference on communications in various fields, where it
caused a lot of excitement and has continued to do so since then. digitalknowledgetoday
Li-Fi technology
uses visible or near-ultraviolet (UV) and near-infrared (NIR) light from the
electromagnetic spectrum (not radio frequency) to become optical wireless
communication with higher transmission capacity, which is marketed as a
solution for the current bandwidth. ... restrictions. In fact, it uses LED
technology (with a large boom for lighting in homes, companies, and public
places) to transmit information to any device or gadget perceived by the LED
light or in its incidence area through changes in the light intensity.
Achieving speeds of 224 gigabits per next (Gbps), which is 100 times faster
than Wi-Fi, although it is commercially expected to reach 10 Gbps (gigabits per
second). Consequently, installing the modulator on an LED light bulb will be
able not only to shine but also to transmit data. For this, the receivers must
have the appropriate technology (receiving photodiode) for decoding the light
signal, converting it into information. healthnutritionhints
Since its
presentation in 2011, various technology centers around the world (Russia, USA,
Israel or China) have been working on its development and specific
applications, although at the moment several solutions that have been presented
for connecting to the Internet contain too many accessories. Small accessories
are expected to see the light of day soon, which will definitely make Li-Fi a
strong Wi-Fi competitor. The first country to commercialize this technology was
Mexico, which his company Sisoft has been doing since the beginning of this
year. It sells luminaires with a Li-Fi transmitter and receiver for the
Internet, audio, and video transmission. smartdiethealth
It is estimated
that the goal of 50,000 million connected people will be met in 2020, when
Li-Fi is seen as a good solution for already saturated radio networks.
Many multinational
companies such as Siemens and Apple are very interested in this technology and
are working to include it in their flagship products as soon as possible. This
implies a lot of reinforcement of the momentum of this technology, which is
inevitable when introduced into day-to-day activities.
Applications
Why can we use this technology of fast information transfer? Although there is still a lot to develop
and implement in this telecommunications technology, and that it is initially
offered as a complement to Wi-Fi for local environments, numerous applications
are envisaged in various fields such as automotive, industry and of course
everyday life and at home, not forgetting the business activities, in which
Li-Fi technology can play a key role in the marketing and communication
strategies of companies.
Transfer of large
amounts of information between computers, gadgets and multimedia devices. It is
especially interesting for Live Streaming so that live events can be viewed in
HD quality. Experimentally, this is already being carried out in various local
social networks. healthfitnesschampion
Transmission of
information over short distances, as currently, NFC technology offers for the
safe opening of locks without the need to use a key or access card, make
payments, personal identification using mobile phones.
In industry, this
will allow machines, tools, and devices to be connected to each other in order
to control and improve production processes based on decisions made by the team
of people who run it, or even a central computer. Could this lead to a fourth
industrial revolution?
In hospitals, the
elimination of wiring that is currently required for certain devices that are
used there.
Internet of Things
because it makes it easier for household appliances to connect to the Internet.
Automotive
industry. Communication between autonomous cars is provided through their LED
headlights, in addition to their connection to environmental elements such as
street lamps, road signs, parking lots, or the roads themselves, which will have
lithium-fi emitters to transmit real-time information to vehicles that they are
passing through. ...
Very useful for
underground car parks where mobile network coverage is limited.
Advantages of
Li-Fi technology over Wi-Fi
The most mentioned the benefit is its speed, which, as we said, can be up to 100 times faster than
Wi-Fi.
Bandwidth. Thanks
to the wide spectrum of visible light (400 to 800 THz), the bandwidth is 10,000
times that of current radio communications.
No interference
when communicating with other systems, which makes it especially interesting
for sensitive applications such as hospitals, airplanes, and others.
Easy coverage
management to keep your home network secure. Due to the principle of operation,
the range of the Li-Fi network is limited by the distance that the light beam
of the LED lamps installed by us travels, which makes it difficult for third
parties to penetrate.
The technology he
uses is everywhere. There are light bulbs in houses, shops and even on the
street that are only on at the moment. Any light bulb can be easily turned into
a light router by installing a simple emitter.
Energy efficiency,
given the low power consumption of its radiation sources, LED lamps, which
makes it very appropriate.
Disadvantages of
Li-Fi versus Wi-Fi
While it seems like
it is a technology that is in the past and has many advantages over Wi-Fi
technology, it should not be forgotten that it currently has a number of
disadvantages. It seems clear that companies and research centers around the
world are working to reduce or even eliminate these inconveniences and are doing
so in no time.
The radiation range
is reduced, limited to a few meters (until the light from the emitter reaches).
In addition, coverage is reduced when an object prevents the receiving device
from receiving light. It also does not go through walls and walls, which can
sometimes be a problem, although in other cases it is a big advantage, as we
saw earlier.
It does not work in
direct sunlight as it reduces the visibility of light rays from lamps.
Obviously, it does not work when the light is off, since then the emitter (the
light bulb itself) does not work.
Price is another
drawback to start with, at least until the technology is implemented and
significantly reduces costs, which will be the advantage of Li-Fi technology.
The Mexican company Sisoft currently sells fixtures for between 500 and 8,000
Mexican pesos (equivalent to approximately 25,400 euros).
It only works with
devices that have the appropriate recipient technology to be able to receive
the information sent by the sender.
Currently, millions
of devices on the market, such as smartphones, computers, TVs, do not have
Li-Fi technology to connect them, so at present, in order to be able to use
this technology, a gradual change is needed in devices that allow communication
with this technology. so that its use is widespread.
In addition, the
size of the auxiliary components to be installed in receiving sites is too
large, making them impossible to install on mobile and other small devices. One
of the current challenges for the telecommunications industry is getting small
components to use this technology.
Despite the fact
that Li-Fi technology currently has a long way to go, all the tests and
conclusions suggest that we are facing a new technological revolution in
telecommunications, and that it will obviously change the way we understand
communications, they will become closer to communication. and closer. closer
and also personalized depending on where you are.
We need to be very
attentive to the advances this technology brings in order to take advantage of
it and know how our lives, our customs, and routines, which seem to be
stationary at this time will change.
Are you ready for
the next generation in telecommunications? Of course, you want some of these
solutions, or any others that come to your mind, already available for you to
use.
