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Old 30th January 2013
J65nko J65nko is offline
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Default Fujitsu Develops New Data Transfer Protocol Enabling Improved Transmissions Speeds

From http://www.fujitsu.com/global/news/p...130129-02.html

Quote:
Software-only approach enables over 30 times improvement in file transfer speeds between Japan and the US, reduces virtual desktop operating latency to less than 1/6 of previous levels

Conventionally, when using transmission control protocol (TCP)(1)—the standard protocol employed in communications applications—in a low-quality communications environment, such as when connected to a wireless network or during times of line congestion, data loss (packet loss) can occur, leading to significant drops in transmission performance due to increased latency from having to retransmit data.

To address this problem, Fujitsu Laboratories has succeeded at a software-only approach, developing:
  1. A new protocol that incorporates an efficient proprietarily developed retransmission method based on user datagram protocol (UDP)(2), an optimized way to deliver streaming media able to reduce latency resulting from data retransmission when packet loss occurs;
  2. Control technology that addresses the problem of UDP transmissions consuming excess bandwidth by performing a real-time measurement of available network bandwidth and securing an optimal amount of communications bandwidth without overwhelming TCP's share of the bandwidth; and
  3. Technology that, by employing the new protocol, makes it possible to easily speed up existing TCP applications without having to modify them.
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