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On Applications of Disruption Tolerant Networking to Optical Networking in SpaceThe integration of optical communication links into space networks via Disruption Tolerant Networking (DTN) is a largely unexplored area of research. Building on successful foundational work accomplished at JPL, we discuss a multi-hop multi-path network featuring optical links. The experimental test bed is constructed at the NASA Glenn Research Center featuring multiple Ethernet-to-fiber converters coupled with free space optical (FSO) communication channels. The test bed architecture models communication paths from deployed Mars assets to the deep space network (DSN) and finally to the mission operations center (MOC). Reliable versus unreliable communication methods are investigated and discussed; including reliable transport protocols, custody transfer, and fragmentation. Potential commercial applications may include an optical communications infrastructure deployment to support developing nations and remote areas, which are unburdened with supporting an existing heritage means of telecommunications. Narrow laser beam widths and control of polarization states offer inherent physical layer security benefits with optical communications over RF solutions. This paper explores whether or not DTN is appropriate for space-based optical networks, optimal payload sizes, reliability, and a discussion on security.
Document ID
20130011396
Document Type
Conference Paper
Authors
Hylton, Alan Guy (NASA Glenn Research Center Cleveland, OH, United States)
Raible, Daniel E. (NASA Glenn Research Center Cleveland, OH, United States)
Juergens, Jeffrey (NASA Glenn Research Center Cleveland, OH, United States)
Iannicca, Dennis (NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 27, 2013
Publication Date
July 30, 2012
Subject Category
Space Communications, Spacecraft Communications, Command and Tracking
Report/Patent Number
GRC-E-DAA-TN7828
Funding Number(s)
WBS: WBS 439432.04.19.01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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