A wireless sensor network consists of a group of sensing devices with the capability to collect data and relay it to a centralised processing system. They could be deployed and left unattended. However, one major limitation of wireless sensor networks is that sensor nodes have limited power. In general, sensor nodes can operate over a certain period of time depending on their assigned working schedule. Such schedule may be time-based, event-based or a combination of both. For an application that requires collected data to construct a data model for further analysis (e.g., wave pattern analysis), sensor nodes are ordered to periodically collect the data to ensure that the system will receive accurate data for further processing. However, doing so would shorten the overall system lifetime. To enhance the lifetime of a system, we propose a mechanism using statistical methods to adaptively construct a working schedule for each individual sensor node. With the modeled working schedule, it becomes unnecessary for a sensor node to collect data from the working field in a fixed, periodic fashion; thus, allowing a sensor node to become inactive over certain period of time. The simulation results reveal that the system lifetime is increased while the accuracy of the data collected is maintained.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Adaptive working schedule modeling for wireless sensor networks


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.01.2006


    Format / Umfang :

    306694 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Minimum Data Aggregation Schedule in Wireless Sensor Networks

    An, M.K. / Lam, N.X. / Huynh, D.T. et al. | British Library Online Contents | 2011


    Working Ahead Of Schedule

    Online Contents | 2008


    Energy Adaptive Cluster-Head Selection for Wireless Sensor Networks

    Liang, Y. / Zeng, P. / Yu, H.-b. | British Library Online Contents | 2006


    Modeling Schedule Behavior of Buses

    Kalaputapu, R. / Demetsky, M. J. / American Society of Civil Engineers et al. | British Library Conference Proceedings | 1995