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Physical Layer Security in Large-Scale Millimeter Wave Ad Hoc Networks

Zhu, Y; Wang, L; Wong, K-K; Heath, RW; (2017) Physical Layer Security in Large-Scale Millimeter Wave Ad Hoc Networks. In: Jabbari, Bijan, (ed.) Proceedings of 2016 IEEE Global Communications Conference (GLOBECOM). IEEE: Washington, DC USA. Green open access

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Abstract

Wireless networks with directional antennas, like millimeter wave (mmWave) networks, have enhanced security. For a large scale mmWave ad hoc network in which eavesdroppers are randomly located, however, eavesdroppers can still intercept the confidential messages, since they may reside in the signal beam. This paper explores the potential of physical layer security in the mmWave ad hoc networks. Specifically, we characterize the impact of mmWave channel characteristics and large antenna arrays on the secrecy performance. We also characterize the impact of artificial noise in this networks. Our results reveal that in the low transmit power regime, the use of low mmWave frequency achieves better secrecy performance, when increasing transmit power, a transition from low mmWave frequency to high mmWave frequency is demanded for obtaining more secrecy rate. Eavesdroppers can intercept more information by using wide beam pattern. Furthermore, the use of artificial noise may be unable to enhance the secrecy rate for the case of low node density.

Type: Proceedings paper
Title: Physical Layer Security in Large-Scale Millimeter Wave Ad Hoc Networks
Event: 59th Annual IEEE Global Communications Conference (IEEE GLOBECOM)
Location: Washington, DC
Dates: 04 December 2016 - 08 December 2016
ISBN: 978-1-5090-1328-9
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/GLOCOM.2016.7842143
Publisher version: https://doi.org/10.1109/GLOCOM.2016.7842143
Language: English
Additional information: This version is the author accepted manuscriptd. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Ad hoc networks, Interference, Receivers, Network security, Physical layer, Antenna arrays
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1549998
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