Study on ZigBee network architecture and routing algorithm

Control overhead is a very important indicator for measure performance of ZigBee routing protocol. More control overhead will add network energy consumption and reduce network survival time. By analyzing the architecture features of ZigBee network and the key technologies of network layer, researching ZigBee routing protocol based on ZigBee Cluster-Tree network architecture, an improved routing algorithm of control overhead is proposed. The algorithm uses Cluster-Tree parameter of ZigBee network and network addresses of destination nodes to control the transmission range and restrict its transmission direction. The algorithm performance is simulated by NS-2 simulator. The simulating results indicate that control overhead is reduced about a half without influencing packet delivery ratio and path length of ZigBee network.