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A Performance Evaluation of NACK-Oriented Protocols as the Foundation of Reliable Delay- Tolerant Networking Convergence LayersDelay-Tolerant Networking (DTN) is an active area of research in the space communications community. DTN uses a standard layered approach with the Bundle Protocol operating on top of transport layer protocols known as convergence layers that actually transmit the data between nodes. Several different common transport layer protocols have been implemented as convergence layers in DTN implementations including User Datagram Protocol (UDP), Transmission Control Protocol (TCP), and Licklider Transmission Protocol (LTP). The purpose of this paper is to evaluate several stand-alone implementations of negative-acknowledgment based transport layer protocols to determine how they perform in a variety of different link conditions. The transport protocols chosen for this evaluation include Consultative Committee for Space Data Systems (CCSDS) File Delivery Protocol (CFDP), Licklider Transmission Protocol (LTP), NACK-Oriented Reliable Multicast (NORM), and Saratoga. The test parameters that the protocols were subjected to are characteristic of common communications links ranging from terrestrial to cis-lunar and apply different levels of delay, line rate, and error.
Document ID
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Iannicca, Dennis
(NASA Glenn Research Center Cleveland, OH, United States)
Hylton, Alan
(NASA Glenn Research Center Cleveland, OH, United States)
Ishac, Joseph
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
August 27, 2013
Publication Date
December 1, 2012
Subject Category
Systems Analysis And Operations Research
Report/Patent Number
Funding Number(s)
WBS: WBS 439432.04.19.01
Distribution Limits
Work of the US Gov. Public Use Permitted.
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