A consensus time synchronization protocol in wireless sensor network  

作　　者：CHEN Kesong ZHANG Yu 

机构地区：[1]School of Information and Communication Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China

出　　处：《Journal of Systems Engineering and Electronics》2023年第6期1465-1472,共8页系统工程与电子技术（英文版）

摘　　要：Time synchronization is one of the base techniques in wireless sensor networks(WSNs).This paper proposes a novel time synchronization protocol which is a robust consensusbased algorithm in the existence of transmission delay and packet loss.It compensates for transmission delay and packet loss firstly,and then,estimates clock skew and clock offset in two steps.Simulation and experiment results show that the proposed protocol can keep synchronization error below 2μs in the grid network of 10 nodes or the random network of 90 nodes.Moreover,the synchronization accuracy in the proposed protocol can keep constant when the WSN works up to a month.

关 键 词：time synchronization consensus algorithm transmission delay packet loss wireless sensor network(WSN). 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置] TN929.5[自动化与计算机技术—控制科学与工程]