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Security in terahertz WLANs with Leaky wave antennas

Published: 21 July 2020 Publication History

Abstract

This paper presents the first security study of THz networks with Leaky Wave Antennas (LWAs). We employ a mix of analytical models and over-the-air experiments to explore the unique security properties of LWA links. We show via both models and experiments that the LWA's angle-frequency coupling leads to non-uniform secrecy capacity across sub-channels yielding advantages to an eavesdropper at edge frequencies. Yet, because different frequencies emit energy at different angles, the eavesdropper is thwarted from easily intercepting an entire wideband transmission. The experiments diverge from the analytical model in that the model underpredicts the eavesdropper's advantage at angles smaller than the target user and subsequent asymmetric performance across angles. Nonetheless, both the model and measurements show that increasingly wide bandwidth and correspondingly wide beams have only a modest marginal security penalty.

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  • (2024)Security and Angle-Frequency Coupling in Terahertz WLANsIEEE/ACM Transactions on Networking10.1109/TNET.2023.332164132:2(1524-1539)Online publication date: Apr-2024
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    cover image ACM Conferences
    WiSec '20: Proceedings of the 13th ACM Conference on Security and Privacy in Wireless and Mobile Networks
    July 2020
    366 pages
    ISBN:9781450380065
    DOI:10.1145/3395351
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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    Published: 21 July 2020

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    Author Tags

    1. Leaky wave antenna
    2. Terahertz
    3. physical layer security

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    Cited By

    View all
    • (2024)Security and Angle-Frequency Coupling in Terahertz WLANsIEEE/ACM Transactions on Networking10.1109/TNET.2023.332164132:2(1524-1539)Online publication date: Apr-2024
    • (2024)Cell-Free Terahertz Networks: A Spatial-Spectral ApproachIEEE Wireless Communications Letters10.1109/LWC.2023.333133213:2(432-436)Online publication date: Feb-2024
    • (2023)Large-Scale Cellular Vehicle-to-Everything Deployments Based on 5G—Critical Challenges, Solutions, and Vision towards 6G: A SurveySensors10.3390/s2316703123:16(7031)Online publication date: 8-Aug-2023
    • (2023)BIFROST: Reinventing WiFi Signals Based on Dispersion Effect for Accurate Indoor LocalizationProceedings of the 21st ACM Conference on Embedded Networked Sensor Systems10.1145/3625687.3625786(376-389)Online publication date: 12-Nov-2023
    • (2023)Tracking and Transmission Design in Terahertz V2I NetworksIEEE Transactions on Wireless Communications10.1109/TWC.2022.321164722:6(3586-3598)Online publication date: Jun-2023
    • (2023)Securing Angularly Dispersive Terahertz Links With CodingIEEE Transactions on Information Forensics and Security10.1109/TIFS.2023.326766418(3546-3560)Online publication date: 2023
    • (2023)Absolute Security in Terahertz Wireless LinksIEEE Journal of Selected Topics in Signal Processing10.1109/JSTSP.2023.330790617:4(819-833)Online publication date: Jul-2023
    • (2023)A Reconfigurable Phase-Time Array Transmitter Achieving Keyless Secured Transmission and Multi-Receiver Localization for Low-Latency Joint Communication and SensingIEEE Journal of Solid-State Circuits10.1109/JSSC.2023.323746258:7(1898-1912)Online publication date: Jul-2023
    • (2023)Photonics-Assisted Broadband Frequency-Hopping System for W-Band MMW Secure Communications2023 Asia Communications and Photonics Conference/2023 International Photonics and Optoelectronics Meetings (ACP/POEM)10.1109/ACP/POEM59049.2023.10369691(1-4)Online publication date: 4-Nov-2023
    • (2022)Spatial-Spectral Terahertz NetworksIEEE Transactions on Wireless Communications10.1109/TWC.2021.312491821:6(3881-3892)Online publication date: Jun-2022
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