What is Li-Fi technology and how does it work?

Internet technology Li-Fi (or slightly loyalty) is a visible or infrared light to transmit data instead of radio waves.As in the Wi-Fi system, it is a wireless connection with a safe and electromagnetic parasitic potential to bring high speed to the Internet without a parasit.

The supply of this connection occurs through lamps, public lighting or even LED televisions. Although it is in the development phase, it is a great promise for the future of technology, With the delivery of speeds that can be 100 times faster than traditional Wi-Fi.

Learn more about Li-Fi and everything that this internet connection can provide when it becomes commercial.

What is Li-Fi technology?

Li-Fi is a wireless connection system that transmits data with LED light or infrared. He was first presented in 2011 by Professor Harald Haas of Edinburgh University during a conference at Tedglobal.

Wi-Fi (the most used type of connection in the world) using radio frequency, Li-Fi technology requires only one lamp chip To spread the internet signal through bright waves.

The word is that this is a great progress compared to Wi-Fi, 3G, 4G and 5G in terms of bandwidth and width. These connections also become saturated and limited when many users are connected at the same time, which causes performance loss and even a signal decrease. Li-Fi will work with a band frequency of 200,000 GHz Through comparison, Wi-Fi reaches about 5 GHz.

In 2013, a Scottish company called Pureliif, chip Li-1. This carried an important mileage for other organizations to invest. Currently, this technology is in the test phase in the United States and Europe.

How does li-fi work?

This technology works through a visible light communication system (visible communication system or VLC) from three central steps:

• Infection: The LED lamp, which serves as a transmitter of the information from a router. The source emits a flashing light at extremely high speeds, which serves to coding the data to be transmitted similar to the Mors code;
• Front office: It occurs through a photorecepter inserted into a device such as a mobile phone or computer. The device captures fast light variations and converts light signals into electrical signals and then encoded to recover the original data;
• Communication double -way: Finally, a transmitter uplink It uses ambient light to transmit data back to the lamp.

Possible Li-Fi Applications

The idea is that Li-Fi will benefit in many areas that need fast and safe connections. Let’s look at some:

• Hospitals: The signal can use to limit the signal to certain areas by moving according to unableed machines;
• Houses and Offices: In cases that demand too much bandwidth, such as video conferences, they benefit from rapid speed that provides productivity;
• Virtual and increasing reality technologies: Li-fi offers stability and less delay in immersion transmissions and improves experience;
• Industries: They can use a quick and fast connection to intermediate connection machines without interruption.

Li-Fi’s Advantages

So far, the word is that the Li-Fi system brings various advantages to users. Beyond the speed that is much higher than Wi-Fi, this connection should bring security: Since the light walls do not exceed, there is more protection in external parasites.

Because of this high capacity, Li-Fi technology should allow a large number of devices to be connected at the same time without sacrificing the connection.. This also means low delay, which is a major differential for those who use the internet for the game.

Finally it stands out Energy efficiency: The idea is that Li-Fi will be efficiently integrated without having to establish many new equipment.

Li-fi disadvantages

However, there are possible limitations to be considered in Li-Fi. Among them, Limited Network Access: Since it depends on light sources, the connection must be in the inner environments and the direct appearance of the network transmitter of the devices should be.

Considering this, it is worth remembering A large lighting infrastructure is required for the distribution of Li-Fi. Thus, in open events, for example, it will take a long time to have conditions to use this technology.

Still It should take time to be commercial, This means gadget compatibility and the absence of a universal standard.

Can it replace Li-Fi Wi-Fi?

Li-Fi does not yet have commercial usability, but there is a potential for the future development and distribution of this technology. In favor of this, the advantages of the speed obtained by this system, which can decide to invest in the creation of certain equipment of companies.

Probably in the near future, Li-fi and wifi are at the same time, Without changing the other.

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