LOLITA will accelerate the heart of future communications

"Lolita, light of my life, fire of my entrails.My sin, my soul»... How could you imagine Humbert Humbert that his beloved young man would baptize with its name is the European scientific project Information Theory for Low-Latency Wireless Communications (LOLITA, for its acronym in English)...But times change and, together with the great literature of Navokov , there are other needs that, in this case, try to answer Tobias Koch , a researcher at the Carlos III University of Madrid who tries to define the theoretical and mathematical basis that will allow faster and more efficient wireless communication.Yes, LOLITA, which accelerated the heart of a perverted teacher, will now accelerate the communications of the future, between cars without a driver or through 5G networks.

Tobias Koch, scientist at Universidad Carlos III de Madrid , has received an ERC Starting Grant , one of the grants It is for the most important young researchers in Europe to develop the LOLITA project, which will allow to design new systems that use resources such as bandwidth or energy in the most efficient way.

correction codes

Current wireless communication systems exchange packets of several thousand bits and include large correction codes to protect against transmission errors."What we do is include additional bits to correct possible errors", Koch says.This ensures the reliability of the system (that what is transmitted is the same as what is received).

However, future low-latency systems will exchange information much faster (almost in real time) and, for this reason, in packages of only a few hundred bits (a much smaller size), which forces to design new correction codes of a much smaller length.

LOLITA in a big truck of bits

According to Tobias Koch, "it is like trying to transport merchandise in thousands of cars instead of dozens of trucks.To do this, it is necessary to design new correction codes that allow cars to be kept on track when errors arise in driving.If we have to send many packages, we can decide if we keep them all in a warehouse and then send them all together in a truck or if we send the packages one by one in a car."

«With the truck-anade the researcher from the Carlos III University of Madrid-it takes longer because you have to wait to complete the load, but it has the advantage of including larger and stronger security systems (correction codes) at have more space.On the contrary, shipping with cars would be faster because each package can be sent just when it arrives at the warehouse, although less strong codes must be used ».

A possible breakthrough for the networks of the future

As I explained to Nobbot Manuel Sanchez Malagon, Director of Network Planning at Orange Espana, the characteristics of 5G networks are greater capacity and download speed (up to 10 Gigabits per second), lower latency or time of arrival of the information packages (1 millisecond), possibility of multiplying by 100 the number of current devices connected, which will allow a large explosion of objects communicating through the networks and lower battery consumption, which will facilitate new types of connected objects.

All these technical improvements will translate into specific services such as autonomous cars connected in a network , which together with sensor networks on roads and tunnels, will take the traffic to safety levels and efficiency far superior to the current ones, however, as the Carlos III University researcher points out, so that this communication is useful to avoid accidents must occur almost in real time (with a delay or latency of no more than 10 milliseconds)

Therefore, the Tobias Koch project, which starts on March 1, 2017 with an expected duration of five years, can have a great impact on the world to come. We will brighten up the hope of that promising future by reading books like Navokov, another effective wireless communication tool.

Source: uc3m

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