摘要： 路由协议是无线传感器网络研究的热点，针对传感器节点能量有限的特点，为了均衡网络负载、延长网络生存期，该文提出一种基于能量－跳数权重值的多径路由算法(EHM)，其核心思想是各节点维护到其邻居节点的多条路径，并根据邻居节点的跳数和剩余能量信息进行路由选择。利用OPNET仿真工具对算法进行仿真，结果表明EHM算法可以有效地均衡网络节点的能量消耗，在节点剩余能量上有50%左右的性能提升。

关键词: 无线传感器网络, 多径路由, OPNET仿真工具

Abstract: Routing protocol is one of the hotspots in Wireless Sensor Network(WSN) research area. In order to balance the load of the network and prolong the whole network’s life, an energy-hops metrics based multipath routing algorithm(EHM) is proposed. The key idea of the algorithm is that every node maintains multipath to its neighbor nodes, and make the routing decision based on the hops and residual energy of neighbor nodes. Simulation of EHM using OPNET is done, and result shows that EHM can balance the energy consumption of sensor node effectively and improve by about 50% more node residual energy.

Key words: Wireless Sensor Network(WSN), multipath routing, OPNET simulation tool

中图分类号: 

• TP312