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On rate allocation for multiple plants in a networked control system
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre.
KTH, Skolan för elektro- och systemteknik (EES), Reglerteknik. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre.ORCID-id: 0000-0001-9810-3478
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre.ORCID-id: 0000-0002-7926-5081
2012 (engelsk)Inngår i: 2012 American Control Conference (ACC), IEEE Computer Society, 2012, s. 2024-2029Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

The problem of allocating communication resources to multiple plants in a networked control system is investigated. In the presence of a shared communication medium, a total transmission rate constraint is imposed. For the purpose of optimizing the rate allocation to the plants over a finite horizon, two objective functions are considered. The first one is a single-objective function, and the second one is a multi-objective function. Because of the difficulty to derive the closed-form expression of these functions, which depend on the instantaneous communication rate, an approximation is proposed by using high-rate quantization theory. It is shown that the approximate objective functions are convex in the region of interest both in the scalar case and in the multi-objective case. This allows to establish a linear control policy given by the classical linear quadratic Gaussian theory as function of the channel. Based on this result, a new complex relation between the control performance and the channel error probability is characterized.

sted, utgiver, år, opplag, sider
IEEE Computer Society, 2012. s. 2024-2029
Serie
Proceedings of the American Control Conference, ISSN 0743-1619
Emneord [en]
Channel error probabilities, Closed-form expression, Communication rate, Communication resources, Control performance, Finite horizons, High-rate quantization, Linear controls, Linear quadratic Gaussian theory, Multi objective, Multi-objective functions, Objective functions, Rate allocation, Region of interest, Shared communication medium, Total transmission rate, Linear control systems, Networked control systems, Communication
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Identifikatorer
URN: urn:nbn:se:kth:diva-108014ISI: 000310776202052Scopus ID: 2-s2.0-84869392561ISBN: 978-145771095-7 (tryckt)OAI: oai:DiVA.org:kth-108014DiVA, id: diva2:580199
Konferanse
2012 American Control Conference, ACC 2012, 27 June 2012 through 29 June 2012, Montreal, QC
Forskningsfinansiär
ICT - The Next Generation
Merknad

QC 20121221

Tilgjengelig fra: 2012-12-21 Laget: 2012-12-19 Sist oppdatert: 2013-04-11bibliografisk kontrollert

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Fischione, CarloSkoglund, Mikael

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Totalt: 229 treff
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