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Error compensation algorithm in wireless sensor networks synchronisation
Wang FQ(汪付强); Zeng P(曾鹏); Yu HB(于海斌); Xiao Y(肖杨)
Indexed BySCI
WOS IDWOS:000295435100002
Contribution Rank1
Funding OrganizationThis work is supported by National Natural Science Foundation of China 60804067 and National Excellent Young Leader Foundation under grant number 60725312.
KeywordWsns Wireless Sensor Networks Time Synchronisation Clock Drift Compensation Algorithm
AbstractTime synchronisation has been extensively used in wireless sensor networks in many contexts, such as data fusion, TDMA schedules and synchronised sleep periods. Precision is the basic requirement for time synchronisation in wireless sensor networks. Existing time synchronisation methods were not designed to deal with dynamic environment changes. In this paper, we propose an error compensation algorithm which is designed to compensate errors caused by hardware clock drift and environment changes. The algorithm works according to a level hierarchy: the nodes in each level have the same hop and linear regression is adopted to analyse clock drift. The compensation mechanism decreases the instability caused by crystal oscillators and eliminates errors accumulated during running time. The algorithm is implemented on the SIA2420 platform using TinyOS and the results show the reliability of our algorithm.
WOS HeadingsScience & Technology ; Technology
WOS SubjectComputer Science, Information Systems ; Telecommunications
WOS Research AreaComputer Science ; Telecommunications
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Document Type期刊论文
Corresponding AuthorYu HB(于海斌)
Affiliation1.Key Laboratory of Industrial Informatics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
2.Shandong Computer Science Center, Jinan, China
3.Department of Computer Science, The University of Alabama, 101 Houser Hall, P.O. Box 870290, Tuscaloosa, AL 35487 0290, USA
Recommended Citation
GB/T 7714
Wang FQ,Zeng P,Yu HB,et al. Error compensation algorithm in wireless sensor networks synchronisation[J]. INTERNATIONAL JOURNAL OF SENSOR NETWORKS,2011,10(3):123-131.
APA Wang FQ,Zeng P,Yu HB,&Xiao Y.(2011).Error compensation algorithm in wireless sensor networks synchronisation.INTERNATIONAL JOURNAL OF SENSOR NETWORKS,10(3),123-131.
MLA Wang FQ,et al."Error compensation algorithm in wireless sensor networks synchronisation".INTERNATIONAL JOURNAL OF SENSOR NETWORKS 10.3(2011):123-131.
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