Tri-message: a lightweight time synchronization protocol for high latency and resource-constrained networks

Authors:
Chen Tian;Hongbo Jiang;Xue Liu;Xinbing Wang;Wenyu Liu;Yi Wang
Affiliations:
Department of EIE, Huazhong University of Science and Technology, Wuhan, Hubei, China;Department of EIE, Huazhong University of Science and Technology, Wuhan, Hubei, China;School of Computer Science, McGill University, Montreal, Quebec, Canada;Department of Electronic and Engineering, ShangHai JiaoTong University, Shanghai;Department of EIE, Huazhong University of Science and Technology, Wuhan, Hubei, China;Department of EIE, Huazhong University of Science and Technology, Wuhan, Hubei, China
Venue:
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Year:
2009

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Abstract

Existing terrestrial synchronization protocols including RBS, FTSP, TPSN, LTS and TSHL have already achieved high precision in radio networks, but none of them perform well in high latency networks like acoustic sensor networks. In this paper, we present Tri-Message: a lightweight time synchronization protocol for high latency and resource-constrained networks. As its name suggests, only three message exchanges are required in one synchronization process. Meanwhile, Tri-Message utilizes very simple mathematical operations to calculate the clock skew and offset. Specially, Tri-Message is feasible for many extremely long latency applications such as space exploration because it has an increasing synchronization precision with the increasement of distance.