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SLE experience over unreliable network links

Wilfried, Kruse and Ciprian, Furtuna and Carla, Garcia (2012) SLE experience over unreliable network links. SpaceOps2012, 11.-15.6.2012, Stockholm, Schweden.

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Official URL: http://www.spaceops2012.org/proceedings/proceedings.html


Despite the great advances of technology in networking areas, space missions sometimes face difficulties to achieve a successful operational state when high reliability data links are not available between their control centres and the ground stations, causing loss of data and disconnections. The reasons are varied, from time and cost constraints to design and implementation restrictions, as well as additional limitations imposed by the Mission Control System (MCS). The objective of this paper is to share the experience gained at different stages of past spacecraft missions where CCSDS Space Link Extension services were not offered in the initial design, to present the solutions found to mitigate the data losses and to illustrate the positive impact to the overall mission following the implementation of CCSDS SLE services. Comparisons between different ground protocols, used extensively in space operations, to transport telemetry at higher data rates in real time between remote ground stations and control centres, and appropriate parameter fine-tuning that led to improved data delivery reliability are taken into consideration as well. This paper presents the operational success of the deployment of the SLE protocol to overcome the difficulties caused by the specified restrictions and limitations. The result of this analysis, or just parts of it, could be useful to space agencies in planning and designing their future missions in an optimal manner with respect to the ground network design and costs.

Item URL in elib:https://elib.dlr.de/76699/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:SLE experience over unreliable network links
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wilfried, Krusewilfried.kruse (at) dlr.deUNSPECIFIED
Ciprian, Furtunaciprian.furtuna (at) dlr.deUNSPECIFIED
Date:11 June 2012
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:DLR, GSOC, reliability, MCS, SLE, ground ntwork, planning, design
Event Title:SpaceOps2012
Event Location:Stockholm, Schweden
Event Type:international Conference
Event Dates:11.-15.6.2012
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W SY - Technik für Raumfahrtsysteme
DLR - Research area:Space
DLR - Program:W SY - Technik für Raumfahrtsysteme
DLR - Research theme (Project):W - Vorhaben Infrastruktur und Unterstützung für Raumflugbetrieb (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training > GSOC-German Space Operations Center
Deposited By: Pilgram, Martin
Deposited On:10 Aug 2012 11:43
Last Modified:31 Jul 2019 19:37

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