Multi-hopping induced gain scheduling for wireless networked controlled systems

George Nikolakopoulos, Athanasia Panousopoulou, Antonios Tzes, John Lygeros

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    A multi-hopping induced gain scheduler for Wireless Networked Controlled Systems (WiNCS) is proposed. The control scheme is based on a client-server architecture. The data packets are assumed to be carried over a network composed of wireless sensor nodes running the 802.11b protocol. The number of hops necessary for packets to reach their destinations is variable and depends on current traffic conditions. Changes in the number of hops induces changes in the latency times introduced by the communication network in the feedback loop. To deal with these changes an LQR-output feedback scheme is introduced, whose parameters are adjusted according to the number of the hops. The weights of the LQR controllers are subsequently tuned using LMIs to ensure a prescribed stability margin despite the variable latency times. The overall scheme resembles a gain scheduled controller with the number of hops playing the role of the scheduling parameter. Simulation results on the NS-2 simulator are provided to highlight the efficacy of the proposed scheme.

    Original languageEnglish (US)
    Title of host publicationProceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
    Pages470-475
    Number of pages6
    Volume2005
    DOIs
    StatePublished - Dec 1 2005
    Event44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05 - Seville, Spain
    Duration: Dec 12 2005Dec 15 2005

    Other

    Other44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05
    CountrySpain
    CitySeville
    Period12/12/0512/15/05

    Fingerprint

    Scheduling
    Feedback
    Controllers
    Sensor nodes
    Telecommunication networks
    Servers
    Simulators
    Network protocols

    Keywords

    • LMI
    • Networked controlled system
    • Time delayed systems
    • Wireless sensor networks

    ASJC Scopus subject areas

    • Engineering(all)

    Cite this

    Nikolakopoulos, G., Panousopoulou, A., Tzes, A., & Lygeros, J. (2005). Multi-hopping induced gain scheduling for wireless networked controlled systems. In Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05 (Vol. 2005, pp. 470-475). [1582200] https://doi.org/10.1109/CDC.2005.1582200

    Multi-hopping induced gain scheduling for wireless networked controlled systems. / Nikolakopoulos, George; Panousopoulou, Athanasia; Tzes, Antonios; Lygeros, John.

    Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05. Vol. 2005 2005. p. 470-475 1582200.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Nikolakopoulos, G, Panousopoulou, A, Tzes, A & Lygeros, J 2005, Multi-hopping induced gain scheduling for wireless networked controlled systems. in Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05. vol. 2005, 1582200, pp. 470-475, 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05, Seville, Spain, 12/12/05. https://doi.org/10.1109/CDC.2005.1582200
    Nikolakopoulos G, Panousopoulou A, Tzes A, Lygeros J. Multi-hopping induced gain scheduling for wireless networked controlled systems. In Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05. Vol. 2005. 2005. p. 470-475. 1582200 https://doi.org/10.1109/CDC.2005.1582200
    Nikolakopoulos, George ; Panousopoulou, Athanasia ; Tzes, Antonios ; Lygeros, John. / Multi-hopping induced gain scheduling for wireless networked controlled systems. Proceedings of the 44th IEEE Conference on Decision and Control, and the European Control Conference, CDC-ECC '05. Vol. 2005 2005. pp. 470-475
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