中文摘要：

为解决ZigBee网络由于不合理的路由策略导致节点能量浪费和网络陷入局部死亡的问题,提出一种降低节点能量开销的ZBR路由算法。所提ZBR优化算法在路由发送阶段,利用节点自动维护的邻居表信息,优先实现两跳路由传输;在路由发现过程中,根据最大传输跳数和节点间的父子关系,控制ZigBee网络中RN＋节点RREQ分组的洪泛,减少能量浪费;在路由选择时,设计节点能量标志位和能量感知的路由成本函数,减少能量偏低节点的使用概率,降低网络开销和提高节点生存率。通过与原ZBR算法及其他几种改进ZBR算法进行剩余能量和节点生存率对比仿真实验,结果表明：改进的ZBR算法的平均剩余能量提高了7.74%,在网络运行80s时节点生存率提高了20.29%,也高于其他几种改进ZBR算法,该算法可有效减少网络能量消耗,大大提高节点生存率。

英文摘要：

Due to unreasonable routing algorithm,the ZigBee networks encounter node energy over-consumption and partial death. To solve these problems,a ZigBee routing（ZBR） optimization algorithm for reducing node energy consumption is proposed. The proposed ZBR optimization algorithm,in the routing delivery stage,makes use the nodes to maintain neighbor table information automatically,and takes priority for a two-hop routing transmission;in the discovery process of routing,controls the RREQ packet of RN＋ node to reduce energy dissipation according to the maximum hop number and the father-son relationship among the nodes;during routing selection,adds energy flags to the RN- node to reduce the transmission probability of low energy nodes and utilizes an energy-aware routing cost function designed to cut down the network energy cost and improve the node＇s survival rate. Compared with the original ZBR algorithm and several other improved ZBR algorithms of the residual energy and node survival rate in the simulation experiment,the average remaining energy of the improved ZBR algorithm is increased by7.74% and the node survival rate is increased by 20.29% in 80 s running of the network. The algorithm can effectively reduce the network＇s energy consumption and improve node＇s survival rate.