Efficient Time Synchronization in a Wireless Sensor Network by Adaptive Value Tracking - Archive ouverte HAL Access content directly
Journal Articles IEEE Transactions on Wireless Communications Year : 2014

Efficient Time Synchronization in a Wireless Sensor Network by Adaptive Value Tracking

(1) , (2, 1, 3)
1
2
3

Abstract

A desirable flooding-based time synchronization protocol in Wireless Sensor Networks (WSNs) should neither demand fast propagation of up-to-date time information nor keeping track of the neighboring nodes. Moreover, such a protocol is strictly required to have low computational and communication overhead as well as small memory footprint. Would there be a protocol which meets these requirements' We answer this question positively by introducing a novel time synchronization protocol whose main component is " adaptive-value tracking ". Thanks to this component , each sensor node synchronizes the rate of its clock to that of a reference clock through successive feedbacks with a considerably low computational and memory overhead. By adjusting time offset of the rate-synchronized clocks, the network-wide synchronization is established even without demanding rapid propagation of the reference clock and keeping track of the neighboring nodes. In the light of our experimental evaluation in a testbed of 20 MICAz sensor nodes, we observed that the proposed protocol provides similar synchronization under the same communication frequency with an approximately 97% less CPU overhead and 80% less memory allocation compared to the recent flooding based time synchronization protocols in WSNs. Index Terms—Distributed algorithms, flooding based time synchronization , adaptive value tracking (AVT).
Fichier principal
Vignette du fichier
06785999.pdf (1.51 Mo) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

cea-01807005 , version 1 (04-06-2018)

Identifiers

Cite

Kasim Sinan Yildirim, Önder Gürcan. Efficient Time Synchronization in a Wireless Sensor Network by Adaptive Value Tracking. IEEE Transactions on Wireless Communications, 2014, 13, pp.3650 - 3664. ⟨10.1109/TWC.2014.2316168⟩. ⟨cea-01807005⟩
342 View
957 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More