5G can replace cables - but not everywhere
Analysts from Citi have suggested (3r3r3? PDF
) That the 5G technology in the future can drive the cable Internet providers out of the market. Let's talk about how real this "threat" is: where the networks of the new generation will be able to replace the cables, and where - before this is still far away.
/Flickr / kahunapulej / CC
Where 5G can replace cables
In the large cities
With a high probability of 5G will replace the cable Internet in large cities. The technology offers a high data transfer rate - up to 10 thousand Mbit /s. This is ten times faster than a wired connection, but you do not need to solve the problems associated with laying cables in a dense megapolis infrastructure.
There is a situation where one English firm laid fiber optic cables in the sewer system . So it was faster than the classical methods (by 80%). 5G, obviously, completely eliminates the need to build wires "on the ground".
And the war with cable internet has already begun in the US. As noted in its quarterly report ( ? PDF ), Analysts from the Cowen financial institution, the 5G services of Verizon and T-Mobile operators are the biggest threat to the cable Internet in the US.
T-Mobile said that by 2024 they are going to "win" from the cable TV and Internet industry about 10 million users (this is a large part of them). And in Verizon plan to provide 5G residents of Houston, Indianapolis, Los Angeles and Sacramento already this year.
The company will be " to entice "Users have free access to YouTube TV and Apple TV. Verizon CEO Hans Vestberg (Hans Vestberg) in an interview with CNBC stated , that soon everything will be wireless, and 5G-network will displace cables from the market.
Note that for the implementation of 5G in megacities still have to solve a number of difficulties, in particular, problem with the coating . Since 5G uses high frequencies - 28 GHz or higher - the signal is not transmitted over long distances and passes badly through obstacles in the form of walls (this is the price for a high data rate). But the solution to this problem is already working, for example, special are created. distributed antenna systems (DAS).
In the data centers
In June of this year, researchers from the Georgia Institute of Technology presented the so-called outphasing transmitter. The developers of the system combined the antenna modules and radio components in one microprocessor chip.
They used a closed antenna with a dual power supply, which allowed to increase the energy efficiency of the solution both during normal operation and at peak loads. This also made it possible to use more complex modulation protocols.
By words researchers, the solution will be able to transfer data to the data center 6-10 times faster. Use for this will be millimeter waves, on which 5G works. In fairness, we note that data centers that require increased security will still use cables.
/Flickr / Christoph Scholz / CC
Where the cables will remain for a long time
In the suburbs
Due to the fact that 5G uses high frequencies, the signal can not spread over long distances. In this case, is required. a large number of towers. This leads to another problem - these towers still need to be connected with fiber optic cables. But even in developed countries there are still places where there is no "optics".
For example, to the fiber optic network are connected only 3% of the houses in England. In most cases, people in Britain go online using obsolete copper cables, which were laid several decades ago. In the United States, according to data for 201? 20 million residents of remote areas and suburbs generally do not have access to the Internet .
From the point of view of cost, in such places it is cheaper to stretch the cable. This is what is currently being done in England - the subsidiary company of the BT provider, which controls the main Internet networks, will connect 3 million buildings to the fiber-optic network (FTTP) until 2020. If you put a tower, then the coverage of users will be very small. Accordingly, the cost for the services of the provider will increase.
Therefore, there is no need to talk about the massive introduction of 5G in the suburbs and villages. There cables will remain for a long time.
Note that in some cases, the use of 5G in the suburbs is possible. For example, at "Smart" farms , because technologies like LTE-U in open areas work better than Wi-Fi. But here again everything depends on the cost of infrastructure.
Underwater cables that are connect the whole continents , too, will lie still very long. In fact, they provide the functioning of the entire IT infrastructure on the planet. Now the world is surrounded by three hundreds of cable systems, and every year their becomes More.
The world is developing initiatives that in theory can deliver the Internet to remote corners of the planet and from the mainland to the mainland. For example, some time ago in Google worked on the project SkyBender, in which the development of drones with solar panels. The airplanes broadcast the 5G signal to all devices underneath. Now for these purposes, the company uses balloons. But from the global implementation of the project is still far.
In a number of Yuzkeysov 5G will be able to seize the initiative, for example, a new generation of networks will be the main technology for connecting IOT devices in large cities. However, all the cables will not disappear (at least in the near future). History of submarine cables lasts 167 years , and they for a long time will be the foundation of the global IT infrastructure.
P.S. Posts from the corporate blog VAS Experts:
DDOS and 5G: thicker "pipe" - more problems
Internet in the village - we build a radio relay Wi-Fi-network
P.P.S. A couple of articles on the topic from our blog on Habr:
Enough for everyone, or how to deliver the Internet to developing countries
"Final straight": networks 5G be, but not before 2020
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