无线传感器网络ZigBee路由器动态调度协议

he paper proposes a dynamic scheduling protocol of routers in ZigBee-based Wireless Sensor Networks (WSNs) in order to reduce power consumption. Currently standard ZigBee protocol supports the least power-consuming sleep mode of operation only for end nodes. However in order to guarantee reliability of the network the routers need to remain on and constantly listening for activity, which significantly draws more energy and therefore limits the applications of ZigBee technology in WSN field. The proposed ZigBee compliant protocol supports sleep operation for routers and prolongs the lives of the nodes and the whole network at the cost of some rebuilding routings. Experimental results show its considerable advantages over standard ZigBee protocol in reducing power consumption.