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Sensors 2017, 17(7), 1524; doi:10.3390/s17071524

Physical Layer Secret-Key Generation Scheme for Transportation Security Sensor Network

College of Information Engineering, Northwest A&F University, Xianyang 712100, China
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Received: 13 April 2017 / Revised: 23 June 2017 / Accepted: 24 June 2017 / Published: 28 June 2017
(This article belongs to the Special Issue Sensors for Transportation)
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Abstract

Wireless Sensor Networks (WSNs) are widely used in different disciplines, including transportation systems, agriculture field environment monitoring, healthcare systems, and industrial monitoring. The security challenge of the wireless communication link between sensor nodes is critical in WSNs. In this paper, we propose a new physical layer secret-key generation scheme for transportation security sensor network. The scheme is based on the cooperation of all the sensor nodes, thus avoiding the key distribution process, which increases the security of the system. Different passive and active attack models are analyzed in this paper. We also prove that when the cooperative node number is large enough, even when the eavesdropper is equipped with multiple antennas, the secret-key is still secure. Numerical results are performed to show the efficiency of the proposed scheme. View Full-Text
Keywords: transportation security; secret-key generation; physical layer security; wireless sensor network transportation security; secret-key generation; physical layer security; wireless sensor network
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Yang, B.; Zhang, J. Physical Layer Secret-Key Generation Scheme for Transportation Security Sensor Network. Sensors 2017, 17, 1524.

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