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Vol. 154, Issue 7, July 2013, pp. 24-31




A Fast-voting Assurance for Data Fusion in Wireless Sensor Network
1 Jian-Hua HUANG, 2 Yong-Hong SHI, 3 Man-Qi ZHANG, 4 Hong ZHENG

1, 2, 3, 4 East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China

1 Tel.: 13901699598 1
E-mail: jhhuang@ecust.edu.cn


Received: 28 April 2013   /Accepted: 19 July 2013   /Published: 31 July 2013

Digital Sensors and Sensor Sysstems


Abstract: In wireless sensor networks, the voting technique is used to extract a reliable result from redundant information. Therefore, the security problem about data fusion has been the focus of study for a long time. This paper proposes a fast and tolerant voting mechanism (FTVM) for data fusion assurance, which will guarantee the base station to choose the valid fusion data in the shortest possible time. This mechanism adopts the MAC protocol based on CDMA technique, which makes it possible for some fusion nodes to communicate with the base station in a channel simultaneously without arousing data collision, and furthermore with the approach of choosing witness nodes by base station, many witness nodes could poll together, which will accelerate the election by a substantial degree. This work also adopts intrusion detection techniques to identity the compromised nodes and replaces them with backup nodes, such that the tolerance of the network is improved by a large degree. Results from a series of experiments verify the efficiency of FTVM.


Keywords: Wireless sensor networks, Data fusion, Election, Intrusion detection, Witness.



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