Σε λογισμικό και μαθηματικά που μπορούν να καταστήσουν τις διαδικτυακές επικοινωνίες μέσω υπολογιστή, κινητών τηλεφώνων ή δορυφόρων κατά πολύ ταχύτερες και ασφαλέστερες από ό,τι είναι σήμερα, δουλεύουν researchers of Aalborg University, MIT and Caltech.
This particular study uses a four-minute mobile video as an example: the method used by the Danish and American researchers resulted in its download five times faster than with today's state-of-the-art technology, while at the same time it was streamed without interruptions (at the time which through a "conventional" method got stuck 13 times).
This technique could bring dramatic changes to the market and to the Internet in general. "In experiments with our network coding in Internet traffic, equipment manufacturers found speeds that were five to ten times faster than usual. And this technology can be used in satellite communications, mobile communications, and regular online computer communications, "says Frank Figeck, a professor at the Aalborg University Electronic Systems Department.
Communication through Internet formats the data into "packets". Error checks ensure that the signal arrives in the correct format, but it also often means that some "packets" have to be re-sent, which results in slowing down a network. Danish and American researchers solve this particular problem with a special type of network coding that uses innovative mathematics to store and send the signal in a different way. The advantage is that the resulting errors do not entail the need to resend a "packet" - instead, the upstream and downstream data are used to recreate the lost data through a mathematical equation.
With conventional systems, it is possible to send an 1 package, an 2 package and so on. In this case, this is replaced by a mathematical equation. As Figueck explains, a good comparison would be with cars on a street: "we do not need red traffic lights. We ship cars at the junction from all directions, without having to stop one for the other, which results in faster flow of traffic.
Network coding is recommended for use in the Internet of Things, 5G, software defined networks, content centric networks and possibly distributed storage solutions. However, to function, coding and decoding of data is required through dedicated, patented technology. Fecek and his two former students from Aalborg University (together with their colleagues from the United States) founded the Steinwurf software company, which makes Random Linear Network Coding (RLNC) available to manufacturers hardware - while, as noted in a relevant university announcement, secret negotiations are under way to bring this technology to consumers at some point. As part of this effort, the company has opened offices in Silicon Valley (however its headquarters are still in Aalborg).
Source: naftemporiki.gr
