Distributed task synchronization in wireless sensor networks

M. Aoun, J. Catalano, P.D.V. Stok, van der

    Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

    3 Citations (Scopus)


    A WSN is envisaged to consist of a large number of nodes, each combining sensing, processing and wireless communication capabilities. The nodes have to cooperate to achieve a global function required by the user. Towards achieving this goal, multiple tasks are performed on all nodes or a subset of nodes in the network. The subject of this paper is the synchronized execution of periodic tasks at different nodes, for example: sensing tasks or a periodic on/off switching of radio transceivers. The method is based on synchronizing timer interrupt occurrences at different nodes to a single reference, leading to tight synchronization of tasks over nodes. Measurements show that task synchronization is achieved on our hardware platform with an average time difference of 5 µs between the starts of temporally related tasks on different nodes.
    Original languageEnglish
    Title of host publicationProceedings 6th European Conference on Wireless Sensor Networks (EWSN 2009, Cork, Ireland, February 11-13, 2009)
    EditorsU. Roedig, C.J. Sreenan
    Place of PublicationBerlin
    ISBN (Electronic)978-3-642-00224-3
    ISBN (Print)978-3-642-00223-6
    Publication statusPublished - 2009

    Publication series

    NameLecture Notes in Computer Science
    ISSN (Print)0302-9743


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