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Versatile Low Power Media Access for Wireless Sensor Networks (2004)

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by Joseph Polastre , Jason Hill , David Culler
Citations:1093 - 18 self
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BibTeX

@MISC{Polastre04versatilelow,
    author = {Joseph Polastre and Jason Hill and David Culler},
    title = {Versatile Low Power Media Access for Wireless Sensor Networks},
    year = {2004}
}

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Abstract

We propose B-MAC, a carrier sense media access protocol for wireless sensor networks that provides a flexible interface to obtain ultra low power operation, effective collision avoidance, and high channel utilization. To achieve low power operation, B-MAC employs an adaptive preamble sampling scheme to reduce duty cycle and minimize idle listening. B-MAC supports on-the-fly reconfiguration and provides bidirectional interfaces for system services to optimize performance, whether it be for throughput, latency, or power conservation. We build an analytical model of a class of sensor network applications. We use the model to show the effect of changing B-MAC’s parameters and predict the behavior of sensor network applications. By comparing B-MAC to conventional 802.11inspired protocols, specifically S-MAC, we develop an experimental characterization of B-MAC over a wide range of network conditions. We show that B-MAC’s flexibility results in better packet delivery rates, throughput, latency, and energy consumption than S-MAC. By deploying a real world monitoring application with multihop networking, we validate our protocol design and model. Our results illustrate the need for flexible protocols to effectively realize energy efficient sensor network applications.

Keyphrases

wireless sensor network    low power medium access    sensor network application    energy consumption    b-mac support on-the-fly reconfiguration    flexible interface    low power operation    wide range    protocol design    bidirectional interface    b-mac flexibility result    power conservation    ultra low power operation    multihop networking    real world    idle listening    experimental characterization    packet delivery rate    duty cycle    effective collision avoidance    energy efficient sensor network application    carrier sense medium access protocol    flexible protocol    system service    b-mac parameter    analytical model    network condition    high channel utilization   

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