Poster abstract: wiseMAC, an ultra low power MAC protocol for the wiseNET wireless sensor network

  • Authors:
  • A. El-Hoiydi;J.-D. Decotignie;C. Enz;E. Le Roux

  • Affiliations:
  • Swiss Center for Electronics and Microtechnology (CSEM SA), Neuchâtel, Switzerland;Swiss Center for Electronics and Microtechnology (CSEM SA), Neuchâtel, Switzerland;Swiss Center for Electronics and Microtechnology (CSEM SA), Neuchâtel, Switzerland;Swiss Center for Electronics and Microtechnology (CSEM SA), Neuchâtel, Switzerland

  • Venue:
  • Proceedings of the 1st international conference on Embedded networked sensor systems
  • Year:
  • 2003

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Abstract

WiseMAC is a medium access control protocol designed for the WiseNET™ wireless sensor network. It is based on CSMA and uses the preamble sampling technique to minimize the power consumed when listening to an idle medium. A unique feature of this protocol is to exploit the knowledge of the sampling schedule of its direct neighbors in order to use a wake-up preamble of minimized size. This scheme allows not only to reduce the transmit and the receive power consumption, but also brings a drastic reduction of the energy wasted due to overhearing. Backoff and medium reservation schemes have been selected to provide fairness and collision avoidance. WiseMAC requires no set-up signaling, no network-wide time synchronization and is adaptive to the traffic load. It provides an ultra-low average power consumption in low traffic conditions and a high energy efficiency in high traffic conditions.