计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (20): 152-154.

• 网络、通信与安全 • 上一篇    下一篇

无线传感网络低占空比MAC协议性能研究

石军锋1,2,钟先信1
  

  1. 1.重庆大学 光电技术及系统教育部重点实验室,重庆 400030
    2.西南大学 工程技术学院,重庆 400716
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-07-11 发布日期:2007-07-11
  • 通讯作者: 石军锋

Research on low-duty-cycle MAC protocol of wireless sensor networks

SHI Jun-feng1,2,ZHONG Xian-xin1   

  1. 1.Key Lab for Optoelectronic Technology & System Under the State Ministry of Education,Chongqing Univ.,Chongqing 400030,China
    2.Engineering & Technology College of Southwest University,Chongqing 400716,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-07-11 Published:2007-07-11
  • Contact: SHI Jun-feng

摘要: 恰当的通信协议对降低无线通信能耗,延长网络寿命具有重要的意义。低占空比MAC协议通过节点的休眠机制,大大降低了通信模块的空闲监听能耗。以S-MAC协议为例,研究了树型拓扑下低占空比协议的能耗性能、时延性能以及吞吐量,分析了各性能之间的关系以及休眠机制对性能的影响,并通过研究指出了协议的改进方向。

关键词: 无线传感网络, 低占空比, S-MAC, 节能

Abstract: It will significantly reduce energy consumption of communication and prolong networks lifetime to choose appropriate communication protocol.By the periodic listen and sleep,Low-duty-cycle MAC protocal effectively reduces the energy waste due to idle listening.The characteristic of energy waste,network delay and throughput of the low-duty-cycle MAC protocal is explored;the relations of characteristics and the effect of the periodic listen and sleep on characteristics are analyzed.Finally,the advisement for betterment is proposed.

Key words: wireless sensor networks, low duty cycle, S-MAC, energy efficiency