A Time Synchronization Algorithm Based on Cluster-Tree
Gang Hao, Yi Zhuang · Advanced materials research · 2014
Concerning the problem that classical time synchronization algorithms applied to large-scale Wireless Sensor Network have low precision and high energy consumption, this paper proposes a time synchronization algorithm based on cluster-tree. The algorithm can decrease the synchronization hop count by constructing a spanning tree, and uses two-way SRS in inter-cluster and one-way ROS in intra-cluster to reduce the number of messages required for the network synchronization. The experimental results show that the algorithm can keep the network synchronization precision at a higher level and effectively reduce energy consumption of nodes compared with the RBS and TPSN.