Print Email Facebook Twitter Physical Layer Defense against Eavesdropping Attacks on Low-Resolution Phased Arrays Title Physical Layer Defense against Eavesdropping Attacks on Low-Resolution Phased Arrays Author Patel, Kartik (University of Texas at Austin) Myers, N.J. (TU Delft Team Nitin Myers) Heath, Robert W. (University of North Carolina) Date 2022 Abstract Eavesdropping attacks are a severe threat to millimeter-wave (mmWave) networks that use low-resolution phased arrays. Although directional beamforming in mmWave phased arrays provides natural defense against eavesdropping, the use of low-resolution phase shifters induces energy leakage into unintended directions. This energy leakage can be exploited by the adversaries. In this paper, we propose a directional modulation (DM)-based defense against eavesdropping attacks on low-resolution phased arrays. Our defense technique applies random circulant shifts to the beamformer for every symbol transmission. By appropriately adjusting the phase of the transmitted symbol, the transmitter (TX) can maintain a high-quality link with the receiver while corrupting the symbols transmitted along unintended directions. We theoretically analyze the secrecy mutual information (SMI) achieved by the proposed defense mechanism and show that our defense induces artificial phase noise (APN) along unintended directions, which increases the SMI of the system. Finally, we numerically show the superiority of the proposed defense technique over the state-of-the-art defense techniques. Subject Phased arraysPhase noiseTransmittersPhase modulationPhase shiftersSymbolsReceivers To reference this document use: http://resolver.tudelft.nl/uuid:ad39b8d7-747c-4bc0-b416-5ad4287a6295 DOI https://doi.org/10.1109/ICC45855.2022.9838571 Publisher IEEE Embargo date 2023-02-11 ISBN 978-1-6654-9733-6 Source Proceedings European Control Conference (ECC) 2022 Event 2022 European Control Conference (ECC), 2022-07-12 → 2022-07-15, London, United Kingdom Bibliographical note Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2022 Kartik Patel, N.J. Myers, Robert W. Heath Files PDF Physical_Layer_Defense_ag ... Arrays.pdf 2 MB Close viewer /islandora/object/uuid:ad39b8d7-747c-4bc0-b416-5ad4287a6295/datastream/OBJ/view