DocumentCode :
3306669
Title :
Time Synchronization for Failure Tolerance in Wireless Sensor Network
Author :
Wang, Na ; He, Haihui
Author_Institution :
Sch. of Comput. & Inf., Shanghai Second Polytech. Univ., Shanghai, China
fYear :
2012
fDate :
8-10 Aug. 2012
Firstpage :
181
Lastpage :
184
Abstract :
Node in WSN has its own local clock, and it´s difficult to achieve long-term time synchronization between nodes due to some internal and external factors. Within the factors, some internal attackers (group members) report false clock references to their neighbor nodes. Considering the special circumstance that some nodes of the wireless sensor network are faulty, an improved HRTS algorithm named T-HRTS which based on Hierarchy Referencing Time Synchronization resolving the byzantine general problem will be introduced. In T-HRTS, It is the node possessing major clock, but not the root node of each level which is regarded as the reference node. If the root is fault, the normal clock will be the major clock instead of the root´s clock. Therefore, common clock throughout the network will be adjusted according to major clock and the nodes with major clock need not adjust its own clock. Thereby, it can tolerant fault and reduce the clock adjusting time.
Keywords :
clocks; fault tolerance; telecommunication network reliability; wireless sensor networks; T-HRTS; WSN; byzantine general problem; clock adjusting time reduction; failure tolerance; false clock reference; hierarchy referencing time synchronization; improved HRTS algorithm; wireless sensor network; Clocks; Clustering algorithms; Hardware; Protocols; Synchronization; Wireless communication; Wireless sensor networks; Time Synchronization; fault-tolerant; internal attacker; major clock; wireless sensor network;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Software Engineering, Artificial Intelligence, Networking and Parallel & Distributed Computing (SNPD), 2012 13th ACIS International Conference on
Conference_Location :
Kyoto
Print_ISBN :
978-1-4673-2120-4
Type :
conf
DOI :
10.1109/SNPD.2012.29
Filename :
6299278
Link To Document :
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