J4 ›› 2012, Vol. 39 ›› Issue (1): 168-171.doi: 10.3969/j.issn.1001-2400.2012.01.030

• Original Articles • Previous Articles     Next Articles

Novel low energy consumption MAC protocol for the wireless sensor networks

LI Yanxiao;ZHANG Yueling;GUAN Hua;LIU Dongyang   

  1. (School of Telecommunication Eng., Airforce Eng. Univ., Xi'an  710077, China)
  • Received:2011-09-09 Online:2012-02-20 Published:2012-04-06
  • Contact: LI Yanxiao E-mail:lily.summerwine@yahoo.com

Abstract:

Because of the limited power supply of nodes, wireless sensor network energy efficiency research is gaining more and more attention. The energy consumption of the MAC layer is analyzed. Based on the S-MAC protocol and PD-MAC protocol a novel algorithm AP is proposed. In simulations, the proposed protocol is evaluated in comparison with S-MAC and PD-MAC in the aspects of energy efficiency and accuracy of packets sink received. The result shows that collision probability can be reduced reasonably; that energy consumption can be reduced in a better way and that the network longevity can be enhanced efficiently.

Key words: wireless sensor network, energy efficiency, MAC protocol, packet, back off exponent