Evaluating the dependability of a LEO satellite network for scientific applications

Eleftheria Athanasopoulou, Purvesh Thakker, William H Sanders

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Dependability is an important issue in LEO satellite networks. In this paper, we study the dependability of a proposed LEO satellite network for scientific data collection based on the Illinois Observing Nanosatellite (ION). In particular, we first use analytical techniques to determine the amount of radiation shielding and number of redundant components, such as batteries and regulators, needed to achieve particular reliability goals for an individual satellite. We then incorporate the satellite model into a larger satellite network model to analyze network performance and dependability using simulation. Both models are represented as stochastic activity networks (SANs) in Möbius, making it possible to combine them and choose the best solution technique (analytical vs. simulation). Our results show how accumulated radiation dosage affects the functioning of the proposed network, and how redundancy and shielding can be profitably used to increase dependability.

Original languageEnglish (US)
Title of host publicationQEST 2005 - Proceedings Second International Conference on the Quantitative Evaluation of SysTems
Pages95-104
Number of pages10
DOIs
StatePublished - Dec 1 2005
EventQEST 2005 - Second International Conference on the Quantitative Evaluation of SysTems - Torino, Italy
Duration: Sep 19 2005Sep 22 2005

Publication series

NameQEST 2005 - Proceedings Second International Conference on the Quantitative Evaluation of SysTems
Volume2005

Other

OtherQEST 2005 - Second International Conference on the Quantitative Evaluation of SysTems
CountryItaly
CityTorino
Period9/19/059/22/05

ASJC Scopus subject areas

  • Engineering(all)

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    Athanasopoulou, E., Thakker, P., & Sanders, W. H. (2005). Evaluating the dependability of a LEO satellite network for scientific applications. In QEST 2005 - Proceedings Second International Conference on the Quantitative Evaluation of SysTems (pp. 95-104). [1595785] (QEST 2005 - Proceedings Second International Conference on the Quantitative Evaluation of SysTems; Vol. 2005). https://doi.org/10.1109/QEST.2005.11