Hybrid Online Protocols for Source Location Privacy in Wireless Sensor Networks

Bradbury, Matthew and Jhumka, Arshad and Leeke, Matthew (2018) Hybrid Online Protocols for Source Location Privacy in Wireless Sensor Networks. Journal of Parallel and Distributed Computing, 115. pp. 67-81. ISSN 0743-7315

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Abstract

Wireless sensor networks (WSNs) will form the building blocks of many novel applications such as asset monitoring. These applications will have to guarantee that the location of the occurrence of specific events is kept private from attackers, in what is called the source location privacy (SLP) problem. Fake sources have been used in numerous techniques, however, the solution’s efficiency is typically achieved by fine-tuning parameters at compile time. This is undesirable as WSN conditions may change. In this paper, we first present an SLP algorithm – Dynamic  – that estimates the relevant parameters at runtime and show that it provides a high level of SLP, albeit at the expense of a high number of messages. To address this, we provide a hybrid online algorithm – DynamicSPR  – that uses directed random walks for the fake sources allocation strategy to reduce energy usage. We perform simulations of the various protocols we present and our results show that DynamicSPR provides a similar level of SLP as when parameters are optimised at compile-time, with a lower number of messages sent.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Parallel and Distributed Computing
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1700/1705
Subjects:
ID Code:
154157
Deposited By:
Deposited On:
26 Apr 2021 10:40
Refereed?:
Yes
Published?:
Published
Last Modified:
14 Oct 2021 05:40