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Sensors 2017, 17(4), 724;

Preserving Source Location Privacy for Energy Harvesting WSNs

School of Information Technology in Education, South China Normal University, Guangzhou 510631, China
School of Information Science and Engineering, Central South University, Changsha 410083, China
Department of Computer Science, Stony Brook University, New York, NY 11794, USA
Author to whom correspondence should be addressed.
Received: 19 February 2017 / Revised: 22 March 2017 / Accepted: 27 March 2017 / Published: 30 March 2017
(This article belongs to the Special Issue Security and Privacy Challenges in Emerging Fog Computing)
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Fog (From cOre to edGe) computing employs a huge number of wireless embedded devices to enable end users with anywhere-anytime-to-anything connectivity. Due to their operating nature, wireless sensor nodes often work unattended, and hence are exposed to a variety of attacks. Preserving source-location privacy plays a key role in some wireless sensor network (WSN) applications. In this paper, a redundancy branch convergence-based preserved source location privacy scheme (RBCPSLP) is proposed for energy harvesting sensor networks, with the following advantages: numerous routing branches are created in non-hotspot areas with abundant energy, and those routing branches can merge into a few routing paths before they reach the hotspot areas. The generation time, the duration of routing, and the number of routing branches are then decided independently based on the amount of energy obtained, so as to maximize network energy utilization, greatly enhance privacy protection, and provide long network lifetimes. Theoretical analysis and experimental results show that the RBCPSLP scheme allows a several-fold improvement of the network energy utilization as well as the source location privacy preservation, while maximizing network lifetimes. View Full-Text
Keywords: energy harvesting wireless sensor network; preserving source-location privacy; redundancy branch convergent routing; network lifetime energy harvesting wireless sensor network; preserving source-location privacy; redundancy branch convergent routing; network lifetime

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Huang, C.; Ma, M.; Liu, Y.; Liu, A. Preserving Source Location Privacy for Energy Harvesting WSNs. Sensors 2017, 17, 724.

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