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Optimal Sensor Hop Selection: Sensor Energy Minimization and Network Lifetime Maximization with Guaranteed System Performance
CALTECH, Pasadena, CA 91106 USA..
KTH, School of Electrical Engineering (EES).ORCID iD: 0000-0001-9940-5929
CALTECH, Pasadena, CA 91106 USA..ORCID iD: 0000-0002-5785-7481
2008 (English)In: 47TH IEEE CONFERENCE ON DECISION AND CONTROL, 2008 (CDC 2008), IEEE , 2008, p. 2344-2349Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we consider state estimation carried over a sensor network. A fusion center forms a local multi-hop tree of sensors and gateways and fuses the data into a state estimate. It is shown that the optimal estimator over a sensor tree is given by a Kalman filter of certain structure. The number of hops that the sensors use to communicate data with the fusion center is optimized such that either the overall transmission energy is minimized or the network lifetime is maximized. In both cases the fusion center provides a specified level of estimation accuracy. Some heuristic algorithms are proposed which lead to suboptimal solutions in the energy minimization problem, while an algorithm that leads to the global optimal solution is proposed in the lifetime maximization problem. In both cases, the algorithms are shown to have low computational complexity. Examples are provided to demonstrate the theory and algorithms.

Place, publisher, year, edition, pages
IEEE , 2008. p. 2344-2349
Series
IEEE Conference on Decision and Control, ISSN 0743-1546
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-242913ISI: 000307311602077Scopus ID: 2-s2.0-62949224841ISBN: 978-1-4244-3124-3 (print)OAI: oai:DiVA.org:kth-242913DiVA, id: diva2:1287965
Conference
47th IEEE Conference on Decision and Control, DEC 09-11, 2008, IEEE Control Syst Soc (CSS), Cancun, MEXICO
Note

QC 20190212

Available from: 2019-02-12 Created: 2019-02-12 Last updated: 2019-02-12Bibliographically approved

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Johansson, Karl H.

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
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  • asciidoc
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