华南理工大学学报(自然科学版) ›› 2009, Vol. 37 ›› Issue (1): 124-129.

• 计算机科学与技术 • 上一篇    下一篇

基于蓝牙的WSN负载均衡汇聚传输协议

谢嵘 齐德昱 董敏 李拥军   

  1. 华南理工大学 计算机科学与工程学院, 广东 广州 510006
  • 收稿日期:2007-12-19 修回日期:2008-04-14 出版日期:2009-01-25 发布日期:2009-01-25
  • 通信作者: 谢嵘(1974-),男,博士生,讲师,主要从事无线传感器网络研究. E-mail:rongxie2005@yahoo.com.cn
  • 作者简介:谢嵘(1974-),男,博士生,讲师,主要从事无线传感器网络研究.

Bluetooth-Based Load-Balancing Convergecast Protocol for Wireless Sensor Networks

XIE Rong De-yu QI Min DONG Yong-Jun LI   

  1. School of Computer Science and Engineering, South China University of Technology, Guangzhou 510006, Guangdong, China
  • Received:2007-12-19 Revised:2008-04-14 Online:2009-01-25 Published:2009-01-25
  • Contact: 谢嵘(1974-),男,博士生,讲师,主要从事无线传感器网络研究. E-mail:rongxie2005@yahoo.com.cn
  • About author:谢嵘(1974-),男,博士生,讲师,主要从事无线传感器网络研究.

摘要: 针对无线传感器网络数据汇聚传输协议存在的负载不均衡问题,提出了一种新的负载均衡汇聚传输协议.该协议利用竞争算法构建蓝牙分散网主干,采用“按需通告”和“故障检测”相结合的方法进行负载更新,较好地解决了同类算法不能适应流量变化和负载更新次数过多的问题.仿真试验结果表明,该协议具有较高的数据到达率和较平稳的数据传输速率.

关键词: 无线传感器网络, 负载均衡, 汇聚传输, 蓝牙, 分散网

Abstract:

In order to balance the load of the existing data convergecast protocols in wireless sensor networks, this paper proposes a novel load-balancing convergecast protocol (LBCP). LBCP constructs the Bluetooth scatternet branch based on the competition algorithm, and updates the load information with the method combining the "ondemand notice mechanism" with the "fault detection mechanism", thus overcoming the incapability of the conventional algorithms in adapting traffic change and reducing load-updating frequency. Simulated results indicate that, as compared with the conventional protocols, the proposed protocol is of higher data delivery ratio and stabler data transmission rate.

Key words: wireless sensor network, load balance, convergecast, Bluetooth , scatternet