Kishk, Mustafa A. and Dhillon, Harpreet S. (2017) Stochastic Geometry-Based Comparison of Secrecy Enhancement Techniques in D2D Networks. IEEE Wireless Communications Letters, 6 (3). pp. 394-397. ISSN 2162-2337

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Abstract

This letter presents a performance comparison of two popular secrecy enhancement techniques in wireless networks: 1) creating guard zones by restricting transmissions of legitimate transmitters whenever any eavesdropper is detected in their vicinity, and 2) adding artificial noise to the confidential messages to make it difficult for the eavesdroppers to decode them. Focusing on a noise-limited regime, we use tools from stochastic geometry to derive the secrecy outage probability at the eavesdroppers as well as the coverage probability at the legitimate users for both these techniques. Using these results, we derive a threshold on the density of the eavesdroppers below which no secrecy enhancing technique is required to ensure a target secrecy outage probability. For eavesdropper densities above this threshold, we concretely characterize the regimes in which each technique outperforms the other. Our results demonstrate that guard zone technique is better when the distances between the transmitters and their legitimate receivers are higher than a certain threshold.

Item Type:	Article
Keywords:	Stochastic geometry; physical layer security; Poisson point process; secrecy outage; coverage probability;
Academic Unit:	Faculty of Science and Engineering > Electronic Engineering Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	17005
Identification Number:	https://doi.org/10.1109/LWC.2017.2696537
Depositing User:	Mustafa Kishk
Date Deposited:	08 Mar 2023 14:40
Journal or Publication Title:	IEEE Wireless Communications Letters
Publisher:	Institute of Electrical and Electronics Engineers
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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