一种改进ZigBee算法及在温室监控无线网络中的应用

针对传统ZigBee路由算法中由于RREQ分组洪泛而导致的能量过度损耗和节点失效的问题,提出了一种适用于无线网络的ZigBee路由优化算法。算法通过控制ZigBee节点路由发现过程中RREQ分组的广播方向和广播范围、选择节点剩余能量值和链路质量值较优的节点的方式对ZigBee路由算法进行优化。仿真结果表明优化后的ZigBee路由算法显著的降低了ZigBee网络的能耗,降低了网络中节点失效概率,提高了网络的生存时间。所提出的算法应用于温室监控无线网络中,得到了满意的效果。

An improved ZigBee routing algorithm and its application in wireless network of greenhouse monitoring

Aiming at the problems of excessive energy loss and node failure caused by RREQ packet flooding in traditional ZigBee routing algorithms, a ZigBee routing optimization algorithm suitable for greenhouse monitoring wireless network was proposed. The ZigBee routing algorithm is optimized by controlling the broadcast direction and range of RREQ packets during the route discovery process, and selecting nodes with better node residual energy and LQI values. The simulation results show that the improved algorithm effectively reduces the energy loss of the ZigBee network, slows down the node failure process in the network, and improves the network survival time. The proposed algorithm has been applied to the wireless network of greenhouse monitoring and achieved satisfactory results.