LiFi, the future transmission media will let us use internet with light speed
LiFi technology will allow us to connect to the Internet using lamps, street lights or LED television lights. Cheaper, safer and faster than Wi-Fi, it does not require a router. All you have to do to browse the web is point your mobile phone or tablet towards a light bulb.
LiFi (fidelity to light) is a two-way wireless system that transmits information through LED or infrared light. It was first introduced in 2011 and, unlike WiFi, which uses radio frequencies, Lifi technology requires a light source with a chip to transmit an Internet signal via light waves only.
This is a remarkable advance technology in today’s wireless network. Lifi multiplies the speed and bandwidth of WiFi, 3G and 4G.
This is a remarkable advance technology in today’s wireless network. Lifi multiplies the speed and bandwidth of WiFi, 3G and 4G. The latter have a limited capacity and as the number of users increases while browsing, they are blocked, slow down and even interrupt the connection.
However, with LiFi, its band frequency is 200,000 GHz, compared to WiFi’s maximum of 5 GHz, 100 times faster and it can transmit much more data per second. A 2017 study from the University of Eindhoven found a download rate of 42.8 gigabits / second with infrared light within a radius of 2.5 meters, while the best WiFi would reach only 300 Mbps.
Some benefits we will experience in future with LiFi that we never imagined before:
1.Surfing At A Petrol Station:
We can connect to the Internet in places where electromagnetic radiation is prohibited.
2. Communicating With Traffic Lights:
Vehicles with LED headlights will be able to communicate with each other and get traffic information.
3. Learning In Museums:
The lighting of a work of art can connect our mobile to tell the story or other information of our piece
4. Connecting Our Homes:
We can connect our refrigerator or dishwasher with light to create a network of electrical appliances.
5. Find On The Map:
By connecting to a lamppost marked with a unique code we can know where we are
6. Talking Underwater:
Light waves travel more through water than other waves.
7. Protecting Our Privacy:
Organizations that handle confidential information will be able to send and receive data more securely.
8. Downloadable Shopping Catalogues:
Lighting in stores can give us more detailed information on products and discounts.
Worldwide Adoption Of Lifi :
Thanks to the German physicist Harald Haas, professor and director of the Liffey Research and Development Center at the University of Edinburgh, Liffey technology has emerged and can reach our homes in just a few years. It is currently being tested with LED luminaires in offices around the world and the aviation industry is already working on solutions to integrate it into commercial aircraft.
The growth of mobile devices and the increasing demand for higher bandwidth systems is expected to accelerate the development of this social technology in the next decade.
Airports, hospitals, and city streets are other places where envelope technology can become popular. The growth of mobile devices and the increasing demand for higher bandwidth systems is expected to accelerate the development of this social technology in the next decade, as noted in the Liffey Global Technology Analysis and Forecasting Market 2018-2028.
The report estimates that the global market will reach nearly 1 trillion 1 trillion in 202, with a compound annual growth rate of 711.2% over the next 10 years. The Asia-Pacific region will lead the global growth of Lifai technology by 2028, surpassing Europe, which was the most advanced in 2017.
Comparisons between LiFi and WiFi:
LiFi technology is faster, cheaper and even more secure than wifi. Its main advantages include:
The current speed of WiFi ranges from 11 to 300 Mbps, while in the latest study, the speed of Lifi is also highly variable. The maximum speed adopted is 10 Gbit / s, but it has been found that it can reach 224 Gbit / s and the 1.5 Gbit movie can be downloaded in a thousandth of a second.
Cheaper and more sustainable:
It is up to 10 times cheaper than WiFi, requires less equipment and consumes less energy. All you have to do is light a lamp!
Any luminaire can easily be converted into an Internet connection point, as only a simple LiFi emitter needs to be installed.
Like radio waves, light does not pass through walls and this prevents intruders from intercepting surround communication over a wireless network.
The spectrum of light is 10,000 times wider than the radio spectrum, increasing the amount of information it can carry and transmit per second.
LiFi transmits its signal without interruption, which makes communication more stable than WiFi.
Electronic light does not interfere with radio communication, does not communicate with other systems, or compromise transmission from airplanes, ships, etc.
Invisible & Wireless:
LiFi harnesses the lights and distributes them to the router, so it works without the need for cables. In addition, it can work with infrared light, which is invisible to the human eye, or with visible LED light at very low intensities to avoid problems.
Connecting to the Internet through light could prevent the collapse of the radio spectrum, which could happen in 2025, according to Lefebvre inventor Harald Haas.
With the emergence and development of LiFi technology, many foreshadow the obsolescence of wifi and other wireless networks. We will have to wait a few more years to see if streetlights, in addition to illuminating our streets, will connect us to the internet at the speed of light.