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Sensors 2017, 17(3), 614; doi:10.3390/s17030614

All-Direction Random Routing for Source-Location Privacy Protecting against Parasitic Sensor Networks

School of Mathematical Science, Xiamen University, Xiamen 361005, China
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Academic Editor: Leonhard M. Reindl
Received: 21 January 2017 / Revised: 8 March 2017 / Accepted: 15 March 2017 / Published: 17 March 2017
(This article belongs to the Section Sensor Networks)
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Abstract

Wireless sensor networks are deployed to monitor the surrounding physical environments and they also act as the physical environments of parasitic sensor networks, whose purpose is analyzing the contextual privacy and obtaining valuable information from the original wireless sensor networks. Recently, contextual privacy issues associated with wireless communication in open spaces have not been thoroughly addressed and one of the most important challenges is protecting the source locations of the valuable packages. In this paper, we design an all-direction random routing algorithm (ARR) for source-location protecting against parasitic sensor networks. For each package, the routing process of ARR is divided into three stages, i.e., selecting a proper agent node, delivering the package to the agent node from the source node, and sending it to the final destination from the agent node. In ARR, the agent nodes are randomly chosen in all directions by the source nodes using only local decisions, rather than knowing the whole topology of the networks. ARR can control the distributions of the routing paths in a very flexible way and it can guarantee that the routing paths with the same source and destination are totally different from each other. Therefore, it is extremely difficult for the parasitic sensor nodes to trace the packages back to the source nodes. Simulation results illustrate that ARR perfectly confuses the parasitic nodes and obviously outperforms traditional routing-based schemes in protecting source-location privacy, with a marginal increase in the communication overhead and energy consumption. In addition, ARR also requires much less energy than the cloud-based source-location privacy protection schemes. View Full-Text
Keywords: wireless sensor networks; random routing; source-location privacy protecting; identity authentication wireless sensor networks; random routing; source-location privacy protecting; identity authentication
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Wang, N.; Zeng, J. All-Direction Random Routing for Source-Location Privacy Protecting against Parasitic Sensor Networks. Sensors 2017, 17, 614.

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