A technology has been developed that can increase the speed of wireless networks to 1 terabit per second
Scientists from the University of Rice (Rice University) have developed advanced laser-pulsed technology based on lasers. Based on this technology, it will be possible to develop wireless networks with data rates up to 1 terabit (1 terabit is 1 trillion bits). This speed is about 20 thousand times more than that provided by LTE at the moment.
The speed provided by radio-pulse technology should be achieved not for the sake of the "arms race", but rather due to serious research. In 2016, Cisco released a report that mobile traffic in 2016 increased by 74% compared to the same period of the year 2015, reaching 30 million terabit, and continues to grow. So increasing the bandwidth of wireless networks is just a matter of time.
According to Professor Edward Knightley of the University of Rice,
"Overcoming the terabit threshold will solve the problem of providing end-users with high-quality traffic, this will allow implementing a whole set of new mobile services and will change some of the existing communication paradigms."
Ultimately, radio-pulse technology is radically different from the one that exists at the moment. The current carrier frequency modulation technology does not allow you to overcome the 1 terabit barrier, which simply needs to be done in view of the annual growth of traffic consumed.
It is worth mentioning that Guglielmo Marconi used the first impulse technology for data transmission in the early 1900s. In his experiment, he used an antenna connected to a large capacitor. When the capacitor was discharged, discharge occurred and the entire energy of the capacitor was transferred to the antenna as a short pulse.
On a similar principle, the new technology works. Professor Edward Find argues that
"The new impulse system is also built on the principles that Marconi used. But instead of a condenser and an air gap, it uses a high-speed bipolar transistor that supplies energy to the antenna located directly on the chip of the chip. We accumulate energy inside the chip in a magnetic form and use a simple digital "trigger", which allows us to obtain radio pulses with a picosecond duration. In our system there is no generator, at its output we get pure digital radio pulses. "
At the moment, the researchers are working on the development of a transmitter that will be able to send signals from 100 GHz to several THz. Such a transmitter will contain about 10 thousand antennas, each of which is connected to its own chip. This number of antennas will allow to obtain high output power, which will be enough for the organization of wireless communication.
"Communication technologies based on carrier frequency modulation, used in the last few decades, are perfectly suitable for working at relatively low frequencies. But all this changes radically when switching to higher frequencies, in the range lying above the 100 GHz mark. In this case, we must use only the directional transmission within the line of sight. This will allow us to avoid unwanted reflections of signals, and this will make it as difficult as possible to intercept transmitted information. Our technology uses radio signals, but these radio signals are focused like a beam of laser light, "Professor Knightley said at the end of the official press release.
The article is based on materials .
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