Creating secure wireless regions using configurable beamforming

Zhang, Yuanrui; Marshall, Alan; Woods, Roger; Ko, Youngwook

doi:10.1109/pimrc.2014.7136130

Cited by 3 publications

(2 citation statements)

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“…In our previous work [16], [17], beamforming is used to create an 'exposure region' (ER) to protect the transmission to the legitimate user. However, the ER in [16], [17] is not based on information-theoretic parameters and lacks the theoretical analysis. Alternatively, in this paper, the ER is defined by the physical region where any PPP distributed Eve causes secrecy outage to the legitimate transmission in a general channel model, i.e., Rician fading channel.…”

Section: Introductionmentioning

confidence: 99%

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Defining Spatial Secrecy Outage Probability for Exposure Region-Based Beamforming

Zhang

Woods

et al. 2017

IEEE Trans. Wireless Commun.

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With increasing number of antennae in base stations, there is considerable interest in using beamfomining to improve physical layer security, by creating an 'exposure region' that enhances the received signal quality for a legitimate user and reduces the possibility of leaking information to a randomly located passive eavesdropper. The paper formalises this concept by proposing a novel definition for the security level of such a legitimate transmission, called the 'Spatial Secrecy Outage Probability' (SSOP). By performing a theoretical and numerical analysis, it is shown how the antenna array parameters can affect the SSOP and its analytic upper bound. Whilst this approach may be applied to any array type and any fading channel model, it is shown here how the security performance of a uniform linear array varies in a Rician fading channel by examining the analytic SSOP upper bound.

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