Constructing 6LoWPAN wireless sensor networks based on cluster tree
基于簇树的6LoWPAN无线传感器网络构建方案*

The paper proposed a scheme for constructing 6LoWPAN wireless sensor networks based on the cluster tree. The scheme created the cluster generation algorithm based on the number of the cluster members, and in the algorithm, it was always the cluster head with the maximum number of the cluster members that first launched the cluster generation process,so that the total number of the cluster heads could reach to be minimum. In addition, the scheme also presented the cluster repair algorithm and the cluster-tree repair algorithm when the cluster heads or the cluster associate nodes move or fail. In the repair algorithm, the cluster member with the maximum weight was selected as the new cluster head or the new cluster associate node in order to maintain the cluster tree topology and to ensure the IPv6 address correctness and the routing continuity and accuracy. The paper analyzed the performance of the proposed scheme, and the experimental data shows that the proposed cluster tree topology is more stable, and the routing cost is lower.