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Sensors 2016, 16(4), 525;

An Outline of Data Aggregation Security in Heterogeneous Wireless Sensor Networks

LaSTIC Laboratory, Department of Computer Science, University of Batna, Batna 05000, Algeria
Department of Sciences and Engineering, University of Quintana Roo, Chetumal 77019, Mexico
Author to whom correspondence should be addressed.
Academic Editor: Jaime Lloret Mauri
Received: 15 December 2015 / Revised: 26 February 2016 / Accepted: 8 March 2016 / Published: 12 April 2016
(This article belongs to the Special Issue Underwater Sensor Nodes and Underwater Sensor Networks 2016)
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Data aggregation processes aim to reduce the amount of exchanged data in wireless sensor networks and consequently minimize the packet overhead and optimize energy efficiency. Securing the data aggregation process is a real challenge since the aggregation nodes must access the relayed data to apply the aggregation functions. The data aggregation security problem has been widely addressed in classical homogeneous wireless sensor networks, however, most of the proposed security protocols cannot guarantee a high level of security since the sensor node resources are limited. Heterogeneous wireless sensor networks have recently emerged as a new wireless sensor network category which expands the sensor nodes’ resources and capabilities. These new kinds of WSNs have opened new research opportunities where security represents a most attractive area. Indeed, robust and high security level algorithms can be used to secure the data aggregation at the heterogeneous aggregation nodes which is impossible in classical homogeneous WSNs. Contrary to the homogeneous sensor networks, the data aggregation security problem is still not sufficiently covered and the proposed data aggregation security protocols are numberless. To address this recent research area, this paper describes the data aggregation security problem in heterogeneous wireless sensor networks and surveys a few proposed security protocols. A classification and evaluation of the existing protocols is also introduced based on the adopted data aggregation security approach. View Full-Text
Keywords: data aggregation; wireless sensor network; heterogeneity; security data aggregation; wireless sensor network; heterogeneity; security

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Boubiche, S.; Boubiche, D.E.; Bilami, A.; Toral-Cruz, H. An Outline of Data Aggregation Security in Heterogeneous Wireless Sensor Networks. Sensors 2016, 16, 525.

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