X-mac: A short preamble mac protocol for duty-cycled wireless sensor networks

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X-mac: A short preamble mac protocol for duty-cycled wireless sensor networks (2006)

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by Michael Buettner , Gary V. Yee , Eric Anderson , Richard Han

Venue:	in SenSys
Citations:	358 - 0 self

BibTeX

@INPROCEEDINGS{Buettner06x-mac:a,
    author = {Michael Buettner and Gary V. Yee and Eric Anderson and Richard Han},
    title = {X-mac: A short preamble mac protocol for duty-cycled wireless sensor networks},
    booktitle = {in SenSys},
    year = {2006},
    pages = {307--320}
}

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Abstract

In this paper we present X-MAC, a low power MAC protocol for wireless sensor networks (WSNs). Standard MAC protocols developed for duty-cycled WSNs such as B-MAC, which is the default MAC protocol for TinyOS, employ an extended preamble and preamble sampling. While this “low power listening ” approach is simple, asynchronous, and energy-efficient, the long preamble introduces excess latency at each hop, is suboptimal in terms of energy consumption, and suffers from excess energy consumption at nontarget receivers. X-MAC proposes solutions to each of these problems by employing a shortened preamble approach that retains the advantages of low power listening, namely low power communication, simplicity and a decoupling of transmitter and receiver sleep schedules. We demonstrate through implementation and evaluation in a wireless sensor testbed that X-MAC’s shortened preamble approach significantly reduces energy usage at both the transmitter and receiver, reduces per-hop latency, and offers additional advantages such as flexible adaptation to both bursty and periodic sensor data sources.

Keyphrases

duty-cycled wireless sensor network short preamble mac protocol preamble approach low power mac protocol energy consumption periodic sensor data source preamble sampling default mac protocol sleep schedule extended preamble energy usage low power standard mac wireless sensor duty-cycled wsns x-mac proposes solution low power listening long preamble introduces excess latency wireless sensor network additional advantage flexible adaptation low power communication nontarget receiver per-hop latency excess energy consumption

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