Abstract: A time synchronization algorithm which is new for wireless sensor networks have been proposed in this paper named clustered consensus time synchronization (CCTS). On the basis of the distributed consensus time synchronization (DCTS) algorithm, this CCTS is developed. The clustering technique is incorporated into the algorithm in order to maintain the faster convergence of node’s clock synchronization and better energy efficiency. The CCTS can have mainly two stages: intra cluster and inter cluster time synchronization. The improved DCTS is applied in the intra cluster time synchronization and for exchanging messages within the cluster, the responsibility will be given to the cluster head only. Cluster heads exchange messages via gateway nodes in the case of inter cluster time synchronization. The proposed algorithm’s simulation results shows that it reduces the communication traffic compared to DCTS algorithm, and improves the convergence rate due to the combination of clustering topologies.
Keywords: skew, offset, cluster, CCTS, time synchronization.
Title: Time Synchronization in Wireless Sensor Networks: CCTS
Author: Nerin Thomas, Smita C Thomas
International Journal of Computer Science and Information Technology Research
ISSN 2348-1196 (print), ISSN 2348-120X (online)
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