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LQG and Medium Access Control
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-7228-0249
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0003-1835-2963
KTH, School of Electrical Engineering (EES), Automatic Control. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9940-5929
2009 (English)In: Proceedings of the 1st IFAC Workshop on Estimation and Control of Networked Systems (NecSys2009), 2009, 328-333 p.Conference paper, Published paper (Refereed)
Abstract [en]

The communication channel is a shared resource in networked control systems, and channel access at every instant cannot be guaranteed. In this paper, we propose a novel architecture for control over wireless networks with integrated medium access control (MAC).We evaluate the impact of constrained channel access on the cost of controlling a single plant over a network and establish that the separation principle holds under certain conditions on the MAC. We arrive at a classification of random access methods for networked control systems and identify a structure for each method. Then, by evaluating the increase in cost compared to a conventional setup, we identify an adaptive random access method which uses a threshold-based decision criteria on the current data to determine channel access. Finally, we give stability criteria for control applications using these medium access methods.

Place, publisher, year, edition, pages
2009. 328-333 p.
Keyword [en]
Networked Control, Dual Predictor Structure, Medium Access Control, Linear Quadratic Gaussian Control, Random Access.
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-47678DOI: 10.3182/20090924-3-IT-4005.00056Scopus ID: 2-s2.0-79960946099OAI: oai:DiVA.org:kth-47678DiVA: diva2:455968
Conference
the 1st IFAC Workshop on Estimation and Control of Networked Systems
Note
QC 20111118Available from: 2011-11-18 Created: 2011-11-11 Last updated: 2012-02-02Bibliographically approved

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