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MAC specifications for a WPAN allowing both energy saving and guaranteed delay

Part A: MaCARI: a synchronized tree-based MAC protocol
  • Gérard Chalhoub
  • Alexandre Guitton
  • Michel Misson
Part of the IFIP – The International Federation for Information Processing book series (IFIPAICT, volume 264)

Abstract

Industrials have been increasingly interested in sensor and actuator networks to monitor and control installations. The recent IEEE 802.15.4 standard has been developed to address vital issues of these networks, such as limited battery power and low processing capabilities. However, the standard does not meet all the requirements of industrial networks. For example, only some of the IEEE 802.15.4 nodes save en-ergy, and the delay for the computer running the monitoring application to retrieve the sensor data or to activate an actuator is not bounded. Our research on energy-efficient MAC protocol is divided into two parts: Part A is the proposal of a flexible, synchronized tree-based MAC pro-tocol called MaCARI and Part B deals with optimizations that can be performed within each cell.

This paper focuses on Part A, that is, on the description of the MaCARI protocol. MaCARI is designed to tolerate scheduled activities such as sensor data retrieval and unscheduled activities such as complex rout-ing. MaCARI achieves this flexibility by using a tree-based centralized mechanism. We show the benefits of MaCARI by ensuring all nodes sleep regularly and by proving that the maximum end-to-end delay is bounded.

Keywords

wireless sensor networks IEEE 802.15.4 tree-based synchro-nization energy efficient MAC 

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Copyright information

© IFIP International Federation for Information Processing 2008

Authors and Affiliations

  • Gérard Chalhoub
    • 1
  • Alexandre Guitton
    • 1
  • Michel Misson
    • 1
  1. 1.LIMOS-CNRS Clermont UniversityFrance

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