5G and Li-Fi: how these technologies will change the world of the Internet


The Internet can be safely called the technology that has changed the world. Data transfer methods in the global network continue to develop and we will consider the two most promising technologies in this area.

The countdown to the 5G revolution began with the distribution of devices

Ultra-speed mobile Internet will be the engine of technology changing the world. For example, IOT devices for medical care will help people control their diseases and allow medical professionals to conduct an effective remote screening and diagnosis of patients.

In fact, the network will be endowed with the potential that allows surgeons to robotize operations on patients for thousands of kilometers, but for this it is still necessary to overcome the mass of obstacles.

The main interference is the cost of organizing the network and regulating supervision. Communication service providers will have to invest billions of dollars in infrastructure to provide 5G. This includes costs for a large number of antennas, base stations and fiber optic cables. Before 5G gets widespread, all this must be installed and tested.

It is safe to assume that providers will eventually find a way to build the necessary infrastructure, but it will take a lot of time and money. In addition, governments and regulatory authorities should support telecommunications companies, including financial. The authorities will need to take laws that will take into account new income models: data monetization and content management.

After the initial obstacles are overcome, new regulatory and material aspects of responsibility for advanced automated functions will appear: remote surgery, remote medical care, communication between vehicles and public safety.

It is expected that in 2020 5G will be commercial

The KT operator was engaged in the network organization, and Intel and Samsung organized the work of the platform. In addition to the beautiful representation of drones at the Olympics, the network was tested and during the competition.

Developed cities are becoming the first 5G testes, since in rural areas there is currently there is no infrastructure for network support. Required years before the whole world will be connected. Now the fifth generation of mobile Internet is tested in Japanese Yokohama, the Republic of San Marino, Tallinn, and South Korea is going to introduce a network across the country already in the current year. New York, Los Angeles and Las Vegas are also close to this purpose. Among mobile operators, active actions in the 5G direction lead Telecom Italia Mobile, KT, NTT Docomo, T-Mobile and Sprint. Google, Samsung, Huawei, Facebook also took the deployment of their networks. Unlike the rest, Apple will reduce the wavelength and increase the frequency to 39 GHz to reduce the size of the antennas in the hardware. The first CE type certificate for 5G received Huawei, which intends to become the leader in the spread of the fifth generation of the Internet.

Despite the fact that we are in the first stages of the formation of 5G, this is not just a fashionable word — this is an example

Look at any light bulb of your home or office and imagine that it distributes the Internet as well as Wi-Fi router does. You are near the light bulb just a couple of minutes, but have already managed to upload 10 movies in perfect quality. With LI-FI, such fantasies will be real, as the light will receive an additional function except lighting. To begin with, we will understand what Li-Fi is.

Li-Fi data transmission technology applies light to move wireless data in the beam. The devices in which Li-Fi are implemented, transform a beam into an electrical signal. After that, the digital signal is transformed back to the data, and the light bulb actually becomes a wireless router. The term LI-FI was used for the first time a physicist Harald Haas in 2011.

Li-Fi equipment contains a chip that modulates light to transmit data to the optical method. The data is moved using LED lamps, then accepted by photoreceptors. The advantage of Li-Fi in front of Wi-Fi consists in data rate, which is 100 times higher and can reach 1 GB / c.

LED lamps can be adjusted (dimming) at high speed, which is imperceptible to human eye. The pulses during the dimming of the LED lamps are converted into an electric signal. After converting the signal is again transformed into the binary data stream, which is manifested as audio files, video files and web content with Internet access.

In addition to the advantages of the speed and stability of data transfer by Li-Fi, there are disadvantages:

Despite a number of serious minuses, Li-Fi will undoubtedly become a technology changing the world. The advantages of «bright Internet» will be in demand in the following industries:

Also, as the Internet has changed the world 30 years ago, now he is ready to bring human progress to a fundamentally different level, and Li-Fi and 5G will become leading mechanisms to achieve it.

No less impact on life in the future will be