基于反向路由的Zigbee网络本地修复机制改进

针对当前ZigBee网络链路故障修复机制时延长和数据分组丢失的缺陷，提出了一种改进的Zigbee网络本地修复算法(ILRA-AODVjr)。通过空闲路由节点反向路由机制，向邻居节点广播一个具有两跳生命周期反向路由构建报文S-RREQ，为空闲节点产生多个备用局部路由，增加网络中节点有效路由数量，提高网络发现路由速度，缩短网络局部故障修复时间。仿真结果表明，改进的Zigbee网络本地修复算法，有效减少了网络故障修复响应时间，延长网络生命周期，减轻了网络拥塞和延迟。

Improvement of local repair mechanism for Zigbee network based on reverse routing

Aiming at the defects of time delay and data packet loss in ZigBee network link repair mechanism, an improved local repair algorithm (ILRA AODVjr) for Zigbee networks was proposed in this paper. Based on the reverse routing mechanism of leisure routing nodes, a two hop reverse routing S RREQ packet was broadcast to the neighbor nodes, which generated a plurality of alternate local routing for the leisure node, increased the number of effective routes in the network, improved the speed of network discovery, and shortened the local fault recovery time. The simulation results show that the improved local repair algorithm for Zigbee network can effectively reduce the response time of network fault repair, prolong the network life cycle, and reduce the network congestion and delay.