基于能量均衡的Zigbee增强型树路由协议

A Zigbee routing protocol based on enhanced tree and energy balance

针对Zigbee网络树路由算法非最优以及某些关键节点能量使用不均衡,容易形成死点造成网络分割,严重影响网络整体质量的问题,通过在传统树路由协议的邻居表中增加邻居节点的一跳父路由或者子路由,从而在网络中形成比树型路由更短的路由捷径;同时考虑各节点的能耗使用情况,在路由选择时进行能耗判断,根据不同的能量等级改变邻居表的范围,避开能量使用过多的节点。仿真结果显示,改进的路由算法在平均路由跳数和网络死点来临时刻这两项性能上比传统算法均有提高。

In the Zigbee networks, tree routing algorithm is not optimal and some key nodes energy using is not balanced. Therefore it is easy to form a dead node and to cause network partitioning which can seriously affect the overall quality of the network. By adding a one-hop parent and child node in the neighbor table, a shorter path in the network is formed. At the same time, by taking into account the energy consumption of each node usage and judging the energy level when routing and changing the neighbor table range, some nodes which have low energy are avoided. Simulation results show that the improved routing algorithm has a better performance on average routing hops and the death node advent moment than the traditional algorithms.