On the Dual Effect in State-based Scheduling of Networked Control Systems
2011 (English)In: Proceedings of the 2011 American Control Conference, IEEE , 2011, 2216-2221 p.Conference paper (Refereed)
In this paper, we show that there is a dual effect with state-based scheduling. In general, this makes the optimal scheduler and controller hard to find. However, by removing past controls from the scheduling criterion, we find that certainty equivalence holds. This condition is related to the classical result of Bar-Shalom and Tse, and it leads to the design of a sub-optimal scheduler with a certainty equivalent controller. Furthermore, we show that a mapping of the state-based scheduler into one which fulfills this condition, and consequently has an optimal certainty equivalent controller, does not result in an equivalent class of design in the sense of Witsenhausen. Computing the estimate remains hard, but can be simplified by introducing a symmetry constraint on the scheduler.
Place, publisher, year, edition, pages
IEEE , 2011. 2216-2221 p.
, Proceedings of the American Control Conference, ISSN 0743-1619
Estimation error, Optimal control, Optimal scheduling, Processor scheduling, Scheduling, Tin
IdentifiersURN: urn:nbn:se:kth:diva-47682ISI: 000295376002139ScopusID: 2-s2.0-80053155550ISBN: 978-1-4577-0080-4OAI: oai:DiVA.org:kth-47682DiVA: diva2:455997
2011 American Control Conference (ACC) on O'Farrell Street, San Francisco, CA
FunderTrenOp, Transport Research Environment with Novel PerspectivesICT - The Next Generation
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QC 201111172011-11-172011-11-112012-02-07Bibliographically approved