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PR-MAC: Path-Oriented Real-Time MAC Protocol for Wireless Sensor Network

  • Jianrong Chen
  • Peidong Zhu
  • Zhichang Qi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4523)

Abstract

This paper proposes a Path-oriented Real-time Medium Access Control (PR-MAC) protocol for sensor networks to guarantee the bounded delay of data transmission. PR-MAC removes sleep delay with a Bidirectional Pipelining Schedule (BPS) algorithm, and reduces communication delay caused by contention with a multi-channel communication mechanism. BPS enables a node to wake twice during a work cycle so as to support bidirectional data transmission. In either direction, the nodes along a path wake up sequentially. The multi-channel mechanism allocates a special channel for each communication path so that multiple simultaneous events will not interfere with one another. The data delay and energy consumption of PR-MAC is compared with those of S-MAC and DMAC. We implement the prototype of PR-MAC on the ns-2 simulator. Experiments showed PR-MAC performs better than S-MAC in reducing the transmission delay of both data and control message.

Keywords

Sensor network real time MAC schedule channel 

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Copyright information

© Springer Berlin Heidelberg 2007

Authors and Affiliations

  • Jianrong Chen
    • 1
  • Peidong Zhu
    • 1
  • Zhichang Qi
    • 1
  1. 1.College of Computer Science, National University of Defense Technology, Changsha, Hunan, 410073China

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