Paper Info
Title
Reliable time synchronization protocol in sensor networks considering topology changes
Abstract
In this paper, we propose a reliable time synchronization protocol (RTSP) in sensor networks considering topology changes. Due to movement of sensor nodes, running out of energy or crashes in the network, the topology of sensor networks changes very frequently. In the proposed method, synchronization error is decreased by creating a hierarchical tree with lower depth and reliability is improved by maintaining and updating the information of candidate parent nodes. The RTSP reduces recovery time and cost compared to the TPSN (Timing–sync Protocol for Sensor Networks) when there are changes in topology. Simulation results show that RTSP has about 10% better performance than TPSN in synchronization accuracy. The number of messages in RTSP is 10%~30% lower than that in TPSN when there are topology changes.
Year
DOI
Venue
2005
10.1007/11603771_12
IWDC
Keywords
Field
DocType
sensor networks change,sensor networks,synchronization error,sensor node,recovery time,reliable time synchronization protocol,lower depth,topology change,sensor network,synchronization accuracy
Topology,Synchronization,Real Time Streaming Protocol,Computer science,Time synchronization,Sensor array,Network topology,Real-time computing,Transmission protocol,Wireless sensor network,Communications protocol
Conference
Volume
ISSN
ISBN
3741
0302-9743
3-540-30959-4
Citations 
PageRank 
References 
0
0.34
5
Authors
2
Name
Order
Citations
PageRank
So-Young Hwang1205.01
Yunju Baek215623.54