Energy attenuation-based time synchronization for mobile underwater sensor networks
This article investigates the characteristics of underwater acoustic sensor networks,and presents an energy attenuation-based time synchronization algorithm,called Ea-Sync.It is a novel time synchronization method for mobile underwater sensor networks,which makes use of mobile beacon node to assist time synchronization and eliminates the effect of node mobility.Ea-Sync computes out the relationship between node movement and propagation delay by comparing the difference of energy attenuation.This paper also puts forward the mobile beacon node”s trajectories based on the feature of underwater acoustic velocity.Simulation results show that Ea-Sync achieves high precision,low cost time synchronization,and outperforms existing time synchronization algorithms obviously.
underwater sensor networks time synchronization mobile beacon node energy attenuation
GUO Ying
Qingdao University of Science and Technology,Qingdao 266061,China
国内会议
黄山
英文
57-64
2012-10-25（万方平台首次上网日期，不代表论文的发表时间）