An efficient synchronisation protocol for wireless sensor network

Huang, Liusheng; Xu, Hongli; Wan, Yingyu; Wu, Junmin; Liu, Hong

doi:10.1504/ijsnet.2007.012978

Cited by 7 publications

(2 citation statements)

References 12 publications

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“…Our proposed RTSP concentrates on achieving robustness to packet loss resulting from link failure, and it achieves reliable synchronization among neighbors as opposed to using a single time source. There are some other related work in synchronization and other problems .…”

Section: Related Workmentioning

confidence: 99%

Random time source protocol in wireless sensor networks and synchronization in industrial environments

Wang¹,

Zeng

Huang

et al. 2011

Wireless Communications

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Reliability is a crucial aspect of time synchronization for industrial wireless applications in wireless sensor networks. Existing time synchronization algorithms often provide good synchronization in laboratory environments; however, outdoor environments with associated radio interference influence the performance of time synchronization. In this paper, we propose a random time source protocol for industrial wireless applications in wireless sensor network synchronization. Each synchronized node randomly selects its time source for each period in order to prevent reliance on a fixed time source because this may lead to resynchronization once the source fails. We have implemented the algorithm on the SIA2420 platform using TINYOS, and the results show the reliability of our protocol.

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Section: Related Workmentioning

confidence: 99%

Random time source protocol in wireless sensor networks and synchronization in industrial environments

Wang¹,

Zeng

Huang

et al. 2011

Wireless Communications

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show abstract

“…Al-Karaki et al, 2006;Araz and Qi, 2006;Deng et al, 2006;Huang et al, 2006;Wang et al, 2006;Xiao et al, 2006;Zheng et al, 2006;Du et al, 2007;Hu et al, 2007;Liu et al, 2007;Du et al, 2008;Hu et al, 2008;Liu et al, 2009;Galloway et al, 2010;Liu et al, 2010).…”

Section: Related Workunclassified

Error compensation algorithm in wireless sensor networks synchronisation

Wang

Zeng

et al. 2011

IJSNET

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Time 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.

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