IPv6无线传感网负载均衡路由协议研究

摘要

Nowadays,with the continuous development of IPv6 wireless sensor network technology and its constantly expanding applica-tions,the actual deployed network showing the features of large-scale,low-power and lossy. For this reason,IETF proposed a low-power lossy network routing protocol RPL. However RPL protocol does not consider load balancing among multiple aggregation nodes,which likely to cause partial aggregation nodes congest or even failure due to overload,thus reducing the network throughput. Based on RPL,a load balancing routing protocol of IPv6 multi-sink wireless sensor network called LB-RPL is proposed in this paper. Experimental results show that the proposed routing protocol can improve the overall throughput of large-scale networks by only increasing small amount of protocol overhead.%随着IPv6无线传感器网络技术的不断发展及其在应用领域的不断扩大,实际部署的网络呈现出大规模、低功耗、有损等网络特点。为此,IEtF提出了一种低功耗有损网络路由协议—RPL。然而RPL协议并没有考虑多个汇聚节点间的负载均衡,容易造成部分汇聚节点由于负载过重产生拥塞甚至失效,从而降低网络吞吐量。文中基于RPL路由协议,提出了一种基于多汇聚节点的IPv6无线传感网负载均衡路由协议—LB-RPL。实验结果表明,文中设计的路由协议通过少量的协议额外开销,可以提高大规模网络的整体吞吐量。