Versatile low power media access for wireless sensor networks

Versatile low power media access for wireless sensor networks Versatile Low Power Media Access for Wireless Sensor Networks Joseph Polastre Computer Science Department University of California, Berkeley Berkeley, CA 94720 polastre@cs.berkeley.edu Jason Hill JLH Labs 35231 Camino Capistrano Capistrano Beach, CA 92624 jhill@jlhlabs.com David Culler Computer Science Department University of California, Berkeley Berkeley, CA 94720 culler@cs.berkeley.edu ABSTRACT We propose B-MAC, a carrier sense media access protocol for wireless sensor networks that provides a ‚exible 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- ‚y recon guration 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, speci cally S-MAC, we develop an experimental characterization of B-MAC over a wide range of network conditions. We show that B-MAC ™s ‚exibility results in better packet delivery rates, throughput, latency, and energy consumption http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

Versatile low power media access for wireless sensor networks

Association for Computing Machinery — Nov 3, 2004

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Datasource
Association for Computing Machinery
Copyright
Copyright © 2004 by ACM Inc.
ISBN
1-58113-879-2
D.O.I.
10.1145/1031495.1031508
Publisher site
See Article on Publisher Site

Abstract

Versatile Low Power Media Access for Wireless Sensor Networks Joseph Polastre Computer Science Department University of California, Berkeley Berkeley, CA 94720 polastre@cs.berkeley.edu Jason Hill JLH Labs 35231 Camino Capistrano Capistrano Beach, CA 92624 jhill@jlhlabs.com David Culler Computer Science Department University of California, Berkeley Berkeley, CA 94720 culler@cs.berkeley.edu ABSTRACT We propose B-MAC, a carrier sense media access protocol for wireless sensor networks that provides a ‚exible 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- ‚y recon guration 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, speci cally S-MAC, we develop an experimental characterization of B-MAC over a wide range of network conditions. We show that B-MAC ™s ‚exibility results in better packet delivery rates, throughput, latency, and energy consumption

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