关键词: ZigBee； AOVDjr； Cluster-Tree； 自适应

Abstract: ZigBee protocol uses the combination of AODVjr and Cluster-Tree algorithm as its own routing algorithm (ZBR). But the routing algorithm does not combine the advantages of both ones so it leaves little possibility to improve the performance of network. In order to solve the problem, this paper proposes an algorithm which combines the advantages of AODVjr and Cluster-Tree routing algorithm, i.e. ACZBR algorithm. This algorithm uses Cluster-Tree algorithm within cluster and uses AODVjr algorithm between clusters. Meanwhile, in order to avoid dead nodes caused by excessive energy consumption of cluster-head nodes, this algorithm uses a cluster-head adaptive switching strategy to ensure the network performance. The simulation result shows that the ZBR algorithm has greatly improved the performance of network lifetime, packet loss rate, delay and etc.

Key words: ZigBee; AOVDjr; Cluster-Tree; adaptive