Researchers: new encryption method doubles the bandwidth on satellite




Researchers: new encryption method doubles the bandwidth on satellite

Researchers from MIT and the Irish Hamilton Institute tested a version of network coded tcp which is interesting especially for Internet via satellite. The bandwidth could double. Using ctcp

In the TCP protocol methods are built to check whether a particular package is delivered correctly. If this is not the case, a data packet can be retransmitted, in order to guarantee data integrity. In mobile networks and fixed internet connections, this mechanism usually works fine, but when Internet traffic is through satellites, the delay can increase significantly. This is due to the so-called round trips that may last for half a second after a packet is lost.

Researchers affiliated with MIT and the Irish Institute Hamilton propose that applying network-coded TCP can have on the available bandwidth on satellites beneficial. This is possible because the modified TCP variant describes the contents of multiple data packets via algorithms. This allows a receiver possibly lost packets still reconstruct itself. Although more data packets to be sent ctcp many round trips are no longer needed. This would effectively double the available bandwidth.

Currently ctcp yet tested in the laboratory, but want the protocol to test next year on a larger scale, the authors wrote Technolgy Review. Possible tests will then be held on actual satellite links. The providers of Internet via satellite, a relatively expensive method of accessing the Internet, would be very interested in ctcp because they can use their existing connections and much more efficient “low-hanging fruit” has already been used to optimize bandwidth.


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