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Improving Reliability of Real-Time Systems through Value and Time Voting
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. (IS (Embedded Systems))ORCID iD: 0000-0001-5053-6725
University of York.ORCID iD: 0000-0003-2415-8219
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. (IS (Embedded Systems))ORCID iD: 0000-0002-6352-4368
Mälardalen University, School of Innovation, Design and Engineering, Embedded Systems. (IS (Embedded Systems))ORCID iD: 0000-0001-5269-3900
2013 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Critical systems often use N-modular redundancy to tolerate faults in subsystems. Traditional approaches to N-modular redundancy in distributed, loosely-synchronised, real-time systems handle time and value errors separately: a voter detects value errors, while watchdog-based health monitoring detects timing errors. In prior work, we proposed the integrated Voting on Time and Value (VTV) strategy, which allows both timing and value errors to be detected simultaneously. In this paper, we show how VTV can be harnessed as part of an overall fault tolerance strategy and evaluate its performance using a well-known control application, the Inverted Pendulum. Through extensive simulations, we compare the performance of Inverted Pendulum systems which employs VTV and alternative voting strategies to demonstrate that VTV better tolerates well-recognised faults in this realistically complex control problem.

Place, publisher, year, edition, pages
2013. p. 21-30
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:mdh:diva-23854DOI: 10.1109/PRDC.2013.11ISI: 000355537700003Scopus ID: 2-s2.0-84906751830ISBN: 978-0-7695-5130-2 (print)OAI: oai:DiVA.org:mdh-23854DiVA, id: diva2:682447
Conference
19th IEEE Pacific Rim International Symposium on Dependable Computing, Vancouver, British Columbia, Canada December 2-4, 2013
Available from: 2013-12-27 Created: 2013-12-19 Last updated: 2015-11-16Bibliographically approved

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Aysan, HuseyinBate, IainGraydon, PatrickPunnekkat, Sasikumar

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Citation style
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Output format
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