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Dynamic Routing for Delay-Tolerant Networking in Space Flight OperationsContact Graph Routing (CGR) is a dynamic routing system that computes routes through a time-varying topology composed of scheduled, bounded communication contacts in a network built on the Delay-Tolerant Networking (DTN) architecture. It is designed to support operations in a space network based on DTN, but it also could be used in terrestrial applications where operation according to a predefined schedule is preferable to opportunistic communication, as in a low-power sensor network. This paper will describe the operation of the CGR system and explain how it can enable data delivery over scheduled transmission opportunities, fully utilizing the available transmission capacity, without knowing the current state of any bundle protocol node (other than the local node itself) and without exhausting processing resources at any bundle router.
Document ID
20150014735
Document Type
Conference Paper
External Source(s)
Authors
Burleigh, Scott C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 3, 2015
Publication Date
May 12, 2008
Subject Category
Communications and Radar
Meeting Information
SpaceOps 2008(Heidelberg)
Distribution Limits
Public
Copyright
Other
Keywords
CGR
contact graph routing
DTN

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