Adaptive Complex Filtering for Narrowband Jamming Mitigation in Resource-Constrained Wireless Networks

Zlatka Valkova Valkova-Jarvis, Dimitriya Angelova Mihaylova, Albena Dimitrova Mihovska and Georgi Lubenov Iliev
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Zlatka Valkova Valkova-Jarvis: Faculty of Telecommunications, Technical University of Sofia, Sofia, Bulgaria
Dimitriya Angelova Mihaylova: Faculty of Telecommunications, Technical University of Sofia, Sofia, Bulgaria
Albena Dimitrova Mihovska: Department of Business Development and Technology, Aarhus University, Aarhus, Denmark
Georgi Lubenov Iliev: Faculty of Telecommunications, Technical University of Sofia, Sofia, Bulgaria

International Journal of Interdisciplinary Telecommunications and Networking (IJITN), 2020, vol. 12, issue 2, 46-58

Abstract: Jamming attacks present a major challenge for the physical layer security of wireless communication systems. Among the large number of existing methods for jamming mitigation, filtering is a simple but promisingly effective solution that can be applied in resource-constrained and low-power wireless networks. In this article, a first-order adaptive complex narrowband notch filter is proposed for use against high-power narrowband jamming attacks. The central frequency of the filter is adaptively adjustable to match the interfering frequency. This enables the proposed solution to perform effectively in the presence of a jammer whose frequency varies in fixed or random time periods. The simulation results demonstrate the filter's behavior and the efficiency of the proposed technique.

Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:igg:jitn00:v:12:y:2020:i:2:p:46-58

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