Adaptive cca for ieee 802.15.4 wireless sensor networks to mitigate interference

W Yuan, J.P.M.G Linnartz, IGMM Niemegeers

    Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

    36 Citations (Scopus)

    Abstract

    IEEE 802.15.4 Wireless Sensor Networks (WSNs) share the 2.4 GHz Industrial, Scientific, and Medical (ISM) license-free band with many other wireless technologies such as IEEE 802.11b/g Wireless Local Area Networks (WLANs). Because of the low-power, however, IEEE 802.15.4 WSNs are potentially vulnerable to the interference introduced by the other wireless technologies such as IEEE 802.11b/g WLANs, which have much higher power. Particularly, in the presence of heavy interference, IEEE 802.15.4 nodes can hardly get a chance to access the channel, which could result in discarding a large amount of packets. In this paper, we propose a decentralized approach to help IEEE 802.15.4 nodes mitigate interference. By adaptively and distributively adjusting Clear Channel Assessment (CCA) thresholds of IEEE 802.15.4 nodes in the presence of heavy interference, the approach can substantially reduce the amount of discarded packets due to channel access failures, and therefore significantly enhance the performance of IEEE 802.15.4 WSNs. The approach is robust, responsive and easy to be implemented at a low cost. The effectiveness of the approach is validated by OPNET simulation.
    Original languageEnglish
    Title of host publicationAdaptive cca for ieee 802.15.4 wireless sensor networks to mitigate interference
    Editors s.n.
    Place of PublicationSydney, NSW
    PublisherIEEE Society
    Pages1-5
    Number of pages5
    ISBN (Print)978-1-4244-6396-1
    DOIs
    Publication statusPublished - 2010
    EventWireless Communications and Networking Conference (WCNC), 2010 IEEE - Sydney, NSW
    Duration: 18 Apr 201021 Apr 2010

    Publication series

    Name
    PublisherIEEE

    Conference

    ConferenceWireless Communications and Networking Conference (WCNC), 2010 IEEE
    Period18/04/1021/04/10

    Keywords

    • Conf.proc. > 3 pag

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