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Showing papers by "European Space Operations Centre published in 1998"


Book ChapterDOI
01 Apr 1998
TL;DR: A rate control algorithm is added to the traditional TCP transport protocol elements which exploits the congestion state information conveyed in the Forward/Backward Explicit Congestion Notification (FECN/BECN) of frame relay.
Abstract: Modern network services like Frame Relay provide information about the load or congestion state of the network in real time to all attached end-systems. This allows the end-systems to inject traffic into the network above the agreed service contract based on committed information rate and burst excess size. This paper describes a rate control algorithm that is added to the traditional TCP transport protocol elements which exploits the congestion state information conveyed in the Forward/Backward Explicit Congestion Notification (FECN/BECN) of frame relay. The simulated network and transport protocol behaviour for typical applications of the European Space Agency* shows a win-win situation for the network user and the network provider.

Journal ArticleDOI
TL;DR: In this article, the authors address the ongoing transition from ground-based to robotic on-board autonomous control of space missions, and describe expectations and case examples for future on- board autonomy expansions i.e. for going to a higher degree of robotic control.