Low-power Clustering-based Time Synchronization Mechanism for Multi-hop WSN
Zhixin Liu · Jisuanji gongcheng · 2010
Aiming at the problem of the high synchronization packets costs in typical algorithms,this paper proposes a Low-power Clustering-based Time Synchronization(LCTS) mechanism.It combines unidirectional broadcast synchronization mechanism and bidirectional pair-wise synchronization mechanism,a new clustering algorithm is proposed at the basis of hierarchical network structure to extend LCTS to multi-hop network,and it estimates and compensates the clock drift.Simulation results show that LCTS can reduce the consumption of synchronization packets significantly without causing any synchronization lag as well as ensure the high synchronization accuracy.