ZigBee无线传感网中AODVjr路由协议研究

摘要

At present,ZigBee protocol is mainly applied in wireless sensor network.However,it is easier to arouse a broad?cast storm when using the AODVjr routing algorithm.According to the characteristics of AODVjr algorithm,that is,route-request?ing command frame structure and the route-replying command frame structure,an improved AODVjr routing algorithm is designed. The routing protocol was improved by reducing redundant routing request packet(RREQ)and shortening the lifetime of failure routes,in this way,the routing overhead of the protocol can be reduced.The simulation result by using NS2 shows that the improved AODVjr routing protocol can effectively reduce overhead of the network.%目前ZigBee协议是无线传感网络中的常用通信协议,而ZigBee协议的网络层主要有Cluster-Tree和AODVjr两种路由协议.论文主要研究AODVjr路由协议,该协议存在容易引起广播风暴以及故障路由生存时间较长的缺点.论文针对AODVjr的缺点对其作了研究改进,改进的主要目的是降低路由开销.利用NS2进行的仿真实验结果表明,改进后的AODVjr路由算法能有效节约网络的整体能量.