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TCP's Protocol Radius: the Distance where Timers Prevent Communication

Wood, Lloyd, Peoples, Cathryn, Parr, Gerard, Bryan, Scotney and Adrian, Moore (2007) TCP's Protocol Radius: the Distance where Timers Prevent Communication. In: 3rd International Workshop on Satellite and Space Communications, Salzburg, Austria. IEEE. 5 pp. [Conference contribution]

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DOI: 10.1109/IWSSC.2007.4409409


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 and protocol radius metrics that we establish by simulation indicate how the TCP protocol performs with increasing distance radius between two communicating nodes, and show the boundaries where the protocol undergoes visible performance changes. This allows us to assess the suitability of TCP for long-delay communication, including for deep-space links

Item Type:Conference contribution (Paper)
Keywords:Transmission Control Protocol, Delay Tolerant Networking
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Computing and Information Engineering
Research Institutes and Groups:Computer Science Research Institute
Computer Science Research Institute > Information and Communication Engineering
ID Code:21149
Deposited By: Dr Cathryn Peoples
Deposited On:05 Mar 2012 15:55
Last Modified:09 Dec 2015 11:02

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