MaxMAC: A Maximally Traffic-Adaptive MAC Protocol for Wireless Sensor Networks

  • Philipp Hurni
  • Torsten Braun
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5970)

Abstract

Energy efficiency is a major concern in the design of Wireless Sensor Networks (WSNs) and their communication protocols. As the radio transceiver typically accounts for a major portion of a WSN node’s power consumption, researchers have proposed Energy-Efficient Medium Access (E2-MAC) protocols that switch the radio transceiver off for a major part of the time. Such protocols typically trade off energy-efficiency versus classical quality of service parameters (throughput, latency, reliability). Today’s E2-MAC protocols are able to deliver little amounts of data with a low energy footprint, but introduce severe restrictions with respect to throughput and latency. Regrettably, they yet fail to adapt to varying traffic load at run-time.

This paper presents MaxMAC, an E2-MAC protocol that targets at achieving maximal adaptivity with respect to throughput and latency. By adaptively tuning essential parameters at run-time, the protocol reaches the throughput and latency of energy-unconstrained CSMA in high-traffic phases, while still exhibiting a high energy-efficiency in periods of sparse traffic. The paper compares the protocol against a selection of today’s E2-MAC protocols and evaluates its advantages and drawbacks.

Keywords

Wireless Sensor Networks Energy Efficient Medium Access Control Traffic Adaptivity 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Philipp Hurni
    • 1
  • Torsten Braun
    • 1
  1. 1.Institute of Computer Science and Applied MathematicsUniversity of Bern 

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