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

• 研究论文 • 上一篇    下一篇

一种无线传感器网络MAC层能量有效算法

李延晓;张月玲;管桦;刘东洋   

  1. (空军工程大学 电讯工程学院,陕西 西安  710077)
  • 收稿日期:2011-09-09 出版日期:2012-02-20 发布日期:2012-04-06
  • 作者简介:李延晓(1976-),女,博士,E-mail: lily.summerwine@yahoo.com.
  • 基金资助:

    陕西省自然科学基金资助项目(2010JM8035)

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

摘要:

由于无线传感器网络节点自身携带电池的特殊性, 其能量有效策略的研究越来越受到人们的关注.分析了无线传感器网络数据链路层能量消耗,在S-MAC和PD算法基础上,提出了新的AP算法.仿真结果表明,AP算法合理地减少了碰撞,提高了数据包接收准确度,改进了无线传感器网络的能量有效性,并有效延长了网络的生命周期.

关键词: 无线传感器网络, 能量有效, 媒体访问控制协议, 数据包, 回避指数

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