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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), 11-13 Jul 2012, Pisa, Italy .

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Abstract

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)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
Université de Toulouse > Université de Toulouse II-Le Mirail - UTM
Université de Toulouse > Université de Toulouse I-Sciences Sociales - UT1
Laboratory name:
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Deposited By: Thomas Ferrandiz
Deposited On:07 Sep 2012 14:07

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