A MAC protocol with little idle listening for wireless sensor networks

  • Authors:
  • Chaoguang Men;Yongqian Lu;Dongsheng Wang

  • Affiliations:
  • Research and Development Center of High Dependability Computing Technology, Harbin Engineering University, Harbin, Heilongjiang, P.R. China and National Laboratory for Information Science and Tech ...;Research and Development Center of High Dependability Computing Technology, Harbin Engineering University, Harbin, Heilongjiang, P.R. China;Research and Development Center of High Dependability Computing Technology, Harbin Engineering University, Harbin, Heilongjiang, P.R. China and National Laboratory for Information Science and Tech ...

  • Venue:
  • EUC'07 Proceedings of the 2007 conference on Emerging direction in embedded and ubiquitous computing
  • Year:
  • 2007

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Abstract

In wireless sensor networks, energy efficiency is crucial to achieving satisfactory network lifetime. To reduce the energy consumption significantly, a node should turn off its radio as long as possible. We propose a MAC protocol with little idle listening. The sensor node periodically turns on its radio in polling period and checks for a wake-up signal by sampling the energy on the channel. After polling period, the node enters the long sleep period. The data latency is reduced through reserving the channel in polling period. Analyses and simulations reveal that the proposed protocol outperforms S-MAC and LPL in energy conservation and latency.