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A Reliable Routing Protocol for WSN Based on Load Balancing

LI Zong-hai 1, LIU Shao-jun 1, WANG Yan 1, NIU Xiao-guang 2   

  1. (1. Department of Information Warfare and Command Training, National Defence University, Beijing 100091, China; 2. School of Computer, Wuhan University, Wuhan 430072, China)
  • Received:2012-03-05 Online:2013-10-15 Published:2013-10-14

一种基于负载均衡的WSN可靠路由协议

李宗海1,柳少军1,王 燕1,牛晓光2   

  1. (1. 国防大学信息作战与指挥训练教研部,北京 100091;2. 武汉大学计算机学院,武汉 430072)
  • 作者简介:李宗海(1974-),男,博士研究生,主研方向:无线传感器网络,智能化模拟;柳少军,教授、博士生导师;王 燕, 博士后;牛晓光(通讯作者),讲师、博士
  • 基金资助:
    国家自然科学基金资助项目“无线传感器网络中机会主义路由的安全机制研究”(61003269);中国博士后科学基金资助项目“基于群组密钥的无线传感网机会主义路由安全机制研究”(20110491251);湖北省自然科学基金资助项目“基于机会主义路由的无线传感网高效访问控制机制研究”(2010CDB08505)

Abstract: The communication qualities of the wireless links between the neighbor nodes are poor and unstable which may be caused by node energy exhaustion, node physical destroy or environment inference. The invalidation of wireless links can cause the route breakdown, packet loss and retransmission, which weaken the reliability of the data transmission. Numerous studies show the difficulty to improve the energy efficiency and reliability of routing protocols due to the local unbalanced traffic load distribution. This paper proposes a reliable routing protocol based on load-balancing, namely RR. This protocol employs some mechanisms, including continuous gradient parameter and dynamic link quality evaluation. Experimental results show that this protocol achieves better performance in energy consumption, load balancing and delivery rate.

Key words: Wireless Sensor Network(WSN), load balancing, reliable routing, classified link, link evaluation, cross-layer optimization

摘要: 根据传感器网络的无线信道质量及稳定性、网络局部区域负载均衡性等特点,提出一个跨层协作的可靠路由协议(RR),包括链路质量动态评估机制、节点间距离的精确分级评估方法。RR可以建立并维护从传感器节点到汇聚节点的传输路径,将监测数据可靠地传输到汇聚节点。实验结果表明,在基于RR的传感器网络中,该协议可有效地减少靠近汇聚节点区域节点的最高负载,并提高数据接收率。

关键词: 无线传感器网络, 负载均衡, 可靠路由, 分级链路, 链路评估, 跨层优化

CLC Number: