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    Minimum-energy packet forwarding policies for guaranteed LQG performance in wireless control systems

    Minimum-energy packet forwarding policies for guaranteed LQG performance in wireless control systems

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    This paper studies minimum-energy packet forwarding policies for communicating sensor measurements from plant to controller over an unreliable multi-hop wireless network so as to guarantee that the optimal controller achieves a prespecified closed-loop performance. For fixed sampling interval, we demonstrate that the minimal linear-quadratic control loss is monotonically decreasing in the reliability of the sensor-to-controller communication. This allows us to decompose the overall design problem into two separate tasks: finding the minimum end-to-end reliability that allows to achieve a prespecified linear-quadratic loss, and developing minimum-energy packet forwarding policies under a deadline-constrained reliability requirement. We develop optimal solutions for both subproblems and show how the co-designed system with minimum forwarding energy cost and guaranteed LQG control performance can be found by a one-dimensional search over admissible sampling periods. The paper ends with a numerical example which demonstrates the effectiveness of the proposed framework. ; QC 20121116

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    Titel :

    Minimum-energy packet forwarding policies for guaranteed LQG performance in wireless control systems

    Beteiligte:
    Zou, Zhenhua (Autor:in) / Demirel, Burak (Autor:in) / Johansson, Mikael (Autor:in)
    Erscheinungsdatum :

    2012-01-01

    DOI :

    https://doi.org/10.1109/CDC.2012.6426253

    Medientyp :

    Aufsatz (Konferenz)

    Format :

    Elektronische Ressource

    Sprache :

    Englisch

    Schlagwörter :

    Networks , Delay , Electrical Engineering , Electronic Engineering , Information Engineering , Elektroteknik och elektronik

    Klassifikation :

    DDC:    629

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