• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2012, Vol. 34 ›› Issue (3): 24-28.

• 论文 • 上一篇    下一篇

IEEE 802.15.4 MAC的分析与性能评估

张麟麟1,李东生2,雍爱霞3   

  1. (合肥电子工程学院,安徽 合肥 230037)
  • 收稿日期:2011-03-06 修回日期:2011-06-15 出版日期:2012-03-26 发布日期:2012-03-25
  • 基金资助:

    中国博士后科学基金资助项目(20090461419)

Analysis and Performance Evaluation of the IEEE 802.15.4 MAC Protocol

ZHANG Linlin1,LI Dongsheng2,YONG Aixia3   

  1. (Hefei Electronics Engineering Institute,Hefei 230037,China)
  • Received:2011-03-06 Revised:2011-06-15 Online:2012-03-26 Published:2012-03-25

摘要:

本文针对无线传感网络中如何提高网络的传输性能的问题,提出了对不同的网络拓扑结构采用不同的传输方式。在分析了网络中两种不同的网络结构:“树形”结构及“网形”结构的基础上,运用NS2网络仿真软件,重点分析了在信标使能和非信标使能两种不同的传输方式下,通过改变发包速率来仿真两种不同网络结构中的分组投递率(丢包率)、平均端到端延时和路由开销等网络性能参数。实验结果表明,对不同的网络拓扑结构,有针对性地采用不同的传输方式确实可以提高其传输性能。

关键词: IEEE 802.15.4, 无线传感器网, NS2仿真, 信标使能, 非信标使能

Abstract:

For the problem of how to improve the network transmission performance in wireless sensor networks, the paper proposes a scheme of using different transmission modes for different network topology structures. Based on the analysis of two different network structures: the “tree” structure and the “network” structure by the NS2 network simulation software, the delivery rate(packet loss rate), the average endtoend delay and the routing overhead are analysed for the two different network structures, and for the beaconless and beaconenabled operations. The experimental results show that the different network topology structures targeted by different transmission ways really can increase the transmission performance.

Key words: IEEE 802.15.4;wireless sensor networks;NS2 simulation;beaconless;beaconenabled