ZigBee网络路由算法的分析与优化

Analysis and Optimization of Routing Algorithm for Zigbee Network

论文结合某研究所高海拔地区冻土地温采集项目,通过对ZigBee网络路由算法的分析,针对其网络中传统的路由算法耗能较高,个别节点由于负载较大而导致能量过早消耗殆尽的问题,提出了一种改进的适用于ZigBee网络的路由算法。改进的算法结合了树路由和AODVjr路由协议,对RREQ的传输范围和大致方向进行控制,同时利用邻居表进行路由查找,避开剩余能量不足节点。最后通过仿真工具分析比较优化前后的路由算法,结果表明,改进后的算法有效地降低了网络的整体能耗,提高了节点的生命周期和收发数据的可靠性。

Considering the high cost of the traditional routing algorithm and a problem of individual nodes have a high pay-load in ZigBee network,an improved routing algorithm is proposed which applied to the ZigBee network.The improved algorithm combines the cluster-tree and AODVjr two kind of routing protocols,which control the broadcast scope and direction of the rout request（RREQ）packet,at the same time,the neighbor tables are used to loopup route and let routers possessed a dormant method,finally,the low residual energy nodes are avoided.Using simulation tool simulate the improvement routing algorithm,the routing algorithm is compared with the original routing algorithm,the results show that the improved algorithm effectively reduces the overall energy consumption of network,prolong the nodes lifetime and improved the reliability of send-receive data.