一个适于结构健康监测的WSN能量高效动态路由协议一个适于结构健康监测的WSN能量高效动态路由协议

针对结构健康监测无线传感器网络应用中,网络生命期不足的问题,提出一种低占空比网络下能量高效动态路由协议EEDRP(Energy Efficient Dynamic Routing Protocol),该协议利用邻居节点剩余能量和链路质量动态确定转发集,通过基于转发集活动时隙预测的数据包重传机制,解决了因链路不可靠导致数据传输失败问题.最后,通过仿真对协议进行了验证,结果表明:该协议在保证数据收集低延迟和可靠性前提下,有效延长了网络生命期,满足结构健康监测应用要求.

An energy efficient dynamic routing protocol in WSN for structural health monitoring

With the shortage problem of network lifetime in wireless sensor network of structural health monitoring,this paper proposes a routing protocol EEDRP(Energy Efficient Dynamic Routing Protocol)in the low duty cycle network.The protocol dynamically works out a set of forwarding nodes by using neighbor nodes' link quality and residual energy.At the same time,the protocol also solves the problem of data transmission failure caused by unreliable links by the data packet retransmission mechanism which is based on predicting active time slots of forwarding set.At last,a simulation platform was established to verify the protocol,the result showed that the protocol can prolong the network lifetime efficiently in the conditions of assuring reliability and low latency of data collection.Therefore it can meet the application requirements of structural health monitoring.