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Maintaining connectivity in deep-space communications is of critical importance to key missions and the ability to adapt node behavior “on-the-fly” can have dynamic benefits. Autonomic operation minimizes failure risk by performing local configurations using collected context data and on-board policies, improving response time to events, and reducing remote mission management expense. Herein, we evaluate...
This paper presents an approach to improve transmission success in delay-tolerant networks. The context- aware broker (CAB) grants networking autonomy when communicating in challenging environments, which suffer from conditions which are variable and exceed the limits for which terrestrial protocols were designed. Such environments currently require human intervention and the manual configuration...
We examine how the design of the Transmission Control Protocol (TCP) implicitly presumes a limited range of path delays and distances between communicating endpoints. We show that TCP is less suited to larger delays due to the interaction of various timers present in TCP implementations that limit performance and, eventually, the ability to communicate at all as distances increase. The resulting performance...
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