National Natural Science Foundation of China (No.60933011, No.61103196, No.61170258);Scientific Research Award Fund for Outstanding Young and Middle-aged Scientists of Shandong Province (No.BS2012DX011);Qingdao Science and Technology Development Plan (No.10-3-4-1-6-jch)
HONG Feng, ZHANG Yu-liang, YANG Bo-zhen, et al. Review on Time Synchronization Techniques in Underwater Acoustic Sensor Networks[J]. Acta Electronica Sinica, 2013, 41(5): 960-965.
DOI:
HONG Feng, ZHANG Yu-liang, YANG Bo-zhen, et al. Review on Time Synchronization Techniques in Underwater Acoustic Sensor Networks[J]. Acta Electronica Sinica, 2013, 41(5): 960-965. DOI: 10.3969/j.issn.0372-2112.2013.05.020.
Review on Time Synchronization Techniques in Underwater Acoustic Sensor Networks
Time synchronization is the basis for collaboration across multiple sensor nodes.Underwater sensor networks (UWSNs) have different characteristics from the terrestrial wireless sensor networks
where communication is primarily via acoustic signals
producing new challenges to time synchronization.This paper first illustrates the definitions of the problem and algorithm of time synchronization
describes the major differences between underwater acoustic communication and terrestrial wireless communication
and discusses the influences to time synchronization causing by these differences;then reviews the terrestrial time synchronization algorithms
pointing out the reasons why such algorithms cannot be applied to underwater environment.Afterwards
a thorough review of the research progress on time synchronization for UWSNs has been presented with the performance comparison among four major algorithms through simulations.Finally
we summarize the crucial issues on time synchronization for UWSNs