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PUBLICATIONS

Assessing Directional Time-Dependent Interference Vulnerabilities in Closed-Box Wireless Systems

Published

Author(s)

Michelle Pirrone, Jordan Bernhardt, Adam Wunderlich

Abstract

A general-purpose methodology to assess time-dependent interference vulnerabilities is demonstrated with two different consumer off-the-shelf (COTS), 'closed-box' wireless systems at both the source (data payload origin) and destination (data payload recipient). Specifically, using a point-to-point microwave link operating in the unlicensed U-NII-5 6 GHz band and an IEEE 802.11n Wi-Fi link operating in the U-NII-1 5 GHz band, we evaluate the impact of injected pulse-modulated noise (PMN) with various signal periods at both the source and destination. Observed distributions of link throughput demonstrate 1) asymmetric variations in link response depending on whether interference targeted the source or destination 2) throughput degradations on some interference time-scales that are problematic for critical applications requiring a consistent quality of service 3) inter-system differences in sensitivity to particular time-scales. Furthermore, compared to constant additive white Gaussian noise (AWGN) with the same average power, impacts from PMN are observed to induce greater link degradation at both the source and destination, emphasizing the need to reexamine established test methods that use constant AWGN as a preferred interference benchmark.
Citation
IEEE Transactions on Electromagnetic Compatibility
Pub Type
Journals

Download Paper

https://doi.org/10.1109/TEMC.2024.3466048
Local Download

Keywords

Interference immunity testing, wireless communications, test methods, time-scale, Wi-Fi
Spectrum sharing and Advanced communications

Citation

Pirrone, M. , Bernhardt, J. and Wunderlich, A. (2024), Assessing Directional Time-Dependent Interference Vulnerabilities in Closed-Box Wireless Systems, IEEE Transactions on Electromagnetic Compatibility, [online], https://doi.org/10.1109/TEMC.2024.3466048, https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=957707 (Accessed December 22, 2024)

Issues

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Created October 16, 2024, Updated October 17, 2024