无线传感器网络中基于关键节点的路由算法研究

Routing Algorithm Based on Key Nodes for Wireless Sensor Networks

分簇无线传感器网络的路由算法中,选择簇头和簇形成过程耗费节点能量,且非簇头节点向簇头传送数据使得后者负载过重,导致一些节点过早失效造成网络中的盲点.提出一种新的基于关键节点的路由算法,算法通过对网络分层、选择关键节点完成由网络中更高层次的节点向低层次节点直至基站发送数据.理论分析与Matlab模拟实验结果表明,所提出的经由关键节点的多跳路由算法适用于大规模的无线传感器网络,在降低节点能量耗费的同时,延长了网络的生存周期.

Energy is consumed in cluster head selection and cluster formation process for clustering wireless sensor network routing al- gorithm. Besides, overloading for cluster heads is occurred when transmitting data to them, which cause blind spots in the network. For issues above, a new routing protocol based on key nodes is proposed. The theoretical analysis and Matlab simulation results show that the improved scheme is suitable for large-scale wireless sensor networks to extend the lifetime of the network at the same time reduc- ing the node energy consuming.