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A sensitivity analysis of two worst-case delay computation methods for SpaceWire networks

Ferrandiz, Thomas and Frances, Fabrice and Fraboul, Christian A sensitivity analysis of two worst-case delay computation methods for SpaceWire networks. (2012) In: 24th Euromicro Conference on Real-Time Systems (ECRTS 2012), 11 July 2012 - 13 July 2012 (Pisa, Italy).

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SpaceWire is a standard of on-board networks for satellites promoted by the ESA. As the ESA plans to use SpaceWire as the sole network for both critical and non-critical traffics, network designers need tools to check that all the critical messages meet their deadlines. We proposed previously two such tools to compute an upper-bound on the worst-case end-to-end delay of a packet traversing a SpaceWire network. The main contribution of this paper is the comparison of those two methods on a realistic network configuration provided by Thales Alenia Space. The goal is to identify the key parameters that affect the bounds computed by the methods. We then conduct a sensitivity analysis on simpler network configurations to study the impact of those parameters on the methods and determine which method works better in different situations.

Item Type:Conference or Workshop Item (Paper)
HAL Id:hal-04087247
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Laboratory name:
CNES - Thales Alenia Space
Deposited On:07 Sep 2012 14:07

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