DocumentCode :
2732706
Title :
Privacy-aware probabilistic sampling for data collection in wireless sensor networks
Author :
Guerreiro, João ; Ngai, Edith C -H ; Rohner, Christian
Author_Institution :
Dept. of Inf. Technol., Uppsala Univ., Uppsala, Sweden
fYear :
2011
fDate :
4-8 July 2011
Firstpage :
314
Lastpage :
319
Abstract :
The rising popularity of web services and their applications to sensor networks enables real-time data collection and queries by users. Unlike traditional periodic data collection, the traffic patterns generated from real-time data collection may expose the interests of users or the locations of unusual events to the attackers. To provide privacy in data collection, we propose a novel probabilistic sampling mechanism that can hide user queries and unusual events in the network, while supporting both routine and on-demand data reporting. Our goal is to prevent attackers from locating the unusual events and identifying interests of users by eavesdropping and analyzing the network traffic. In our probabilistic sampling scheme, the data are carefully reported at random times in order to mask the unusual events and user queries. In the meantime, our scheme can provide users with high data accuracy at minimized communication overheads. Extensive simulations have been conducted to evaluate the security strength, data accuracy and communication overheads of the proposed scheme.
Keywords :
Web services; data privacy; probability; sampling methods; telecommunication computing; telecommunication security; telecommunication traffic; wireless sensor networks; Web service; data accuracy; data collection; eavesdropping; on-demand data reporting; privacy-aware probabilistic sampling; security strength evaluation; traffic patterns; wireless sensor network; Accuracy; Logic gates; Privacy; Probabilistic logic; Sampling methods; Web services; Wireless sensor networks; Wireless sensor network; data collection; privacy; sampling;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communications and Mobile Computing Conference (IWCMC), 2011 7th International
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-9539-9
Type :
conf
DOI :
10.1109/IWCMC.2011.5982552
Filename :
5982552
Link To Document :
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