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Coded Control over Lossy Networks
KTH, School of Electrical Engineering and Computer Science (EECS), Automatic Control. KTH, School of Electrical Engineering and Computer Science (EECS), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-9940-5929
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2018 (English)In: Proceedings of the American Control Conference, Institute of Electrical and Electronics Engineers Inc. , 2018, p. 3602-3608Conference paper, Published paper (Refereed)
Abstract [en]

We consider a networked control system with an unreliable feedback link from the sensor to the controller. Specifically, a discrete-time linear system is to be controlled via a packet-drop channel where multiple packets are transmitted at each time instance. We propose a coded control scheme that jointly designs the coding strategy, which mitigates the channel unreliability, and the control strategy, which stabilizes the unstable system. This scheme is based on the idea of successive refinement, that more important system states (or linear combinations thereof) should be better protected against the unreliable channel. The proposed scheme is simple to implement as it uses a static encoder and decoder/controller, in the sense that all encoding and decoding procedures do not require information from previous time steps. Furthermore, we compare it with two other static schemes and show that our approach strikes a good balance between optimality and complexity.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers Inc. , 2018. p. 3602-3608
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:kth:diva-238031DOI: 10.23919/ACC.2018.8431277Scopus ID: 2-s2.0-85052565729ISBN: 9781538654286 (print)OAI: oai:DiVA.org:kth-238031DiVA, id: diva2:1278860
Conference
2018 Annual American Control Conference, ACC 2018, 27 June 2018 through 29 June 2018
Note

Conference code: 138710; Export Date: 30 October 2018; Conference Paper; CODEN: PRACE; Funding details: UC Berkeley, University of California Berkeley; Funding details: P2ELP2_165137; Funding details: P2ELP2_165155; Funding text: Ye Pu, Jingge Zhu, Kannan Ramchandran and Claire J. Tomlin are with the EECS Department, University of California, Berkeley, CA, USA, e-mail: {yepu, jingge.zhu, kannanr, tomlin}@eecs.berkeley.edu. Y. Pu and J. Zhu are supported by the Swiss NSF under Projects P2ELP2_165137 and P2ELP2_165155.

QC 20190115

Available from: 2019-01-15 Created: 2019-01-15 Last updated: 2019-01-15Bibliographically approved

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Johansson, Karl H.

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CiteExportLink to record
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  • apa
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