Energy-efficient data acquisition by adaptive sampling for wireless sensor networks

Y.W. Law, Supriyo Chatterjea, J. Jin meifang, Thomas Hanselmann, Marimuthu Palaniswami

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

    24 Citations (Scopus)

    Abstract

    Wireless sensor networks (WSNs) are well suited for environment monitoring. However, some highly specialized sensors (e.g. hydrological sensors) have high power demand, and without due care, they can exhaust the battery supply quickly. Taking measurements with this kind of sensors can also overwhelm the communication resources by far. One way to reduce the power drawn by these high-demand sensors is adaptive sampling, i.e., to skip sampling when data loss is estimated to be low. Here, we present an adaptive sampling algorithm based on the Box-Jenkins approach in time series analysis. To measure the performance of our algorithms, we use the ratio of the reduction factor to root mean square error (RMSE). The rationale of the metric is that the best algorithm is the algorithm that gives the most reduction in the amount of sampling and yet the the smallest RMSE. For the datasets used in our simulations, our algorithm is capable of reducing the amount of sampling by 24% to 49%. For seven out of eight datasets, our algorithm performs better than the best in the literature so far in terms of the reduction/RMSE ratio.
    Original languageUndefined
    Title of host publicationProceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
    EditorsM. Guizani
    Place of PublicationNew York
    PublisherAssociation for Computing Machinery (ACM)
    Pages1146-1151
    Number of pages6
    ISBN (Print)978-1-60558-569-7
    DOIs
    Publication statusPublished - 21 Jun 2009
    Event2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly - Leipzig, Germany
    Duration: 21 Jun 200924 Jun 2009

    Publication series

    Name
    PublisherACM

    Conference

    Conference2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
    Period21/06/0924/06/09
    Other21-24 June 2009

    Keywords

    • Adaptive sampling
    • ARIMA
    • Box-Jenkins
    • EWI-16581
    • METIS-264180
    • Wireless Sensor Network
    • IR-68667

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