Adversarial indoor signal detection

Surya Kodipaka; Ajaya Dahal; Logan Smith; Nicholas Smith; Bo Tang; John E. Ball; Maxwell Young

doi:10.1117/12.2587525

12 April 2021 Adversarial indoor signal detection

Surya Kodipaka, Ajaya Dahal, Logan Smith, Nicholas Smith, Bo Tang, John E. Ball, Maxwell Young

Proceedings Volume 11756, Signal Processing, Sensor/Information Fusion, and Target Recognition XXX; 1175615 (2021) https://doi.org/10.1117/12.2587525
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

We consider the problem of accurately detecting signals from contraband WiFi devices. Source locations may be selected in a worst-case fashion from within an indoor structure, such as a correctional facility. The structure layout is known, but inaccessible prior to deployment, and only a small number of detectors are available for sensing these signals. Our approach treats this setting as a covering problem, where the aim is to achieve a high probability of detection at each of the grid points of the terrain. Unlike prior approaches, we employ (1) a variant of the maximum coverage problem, which allows us to account for aggregate coverage by several detectors, and (2) a state-of-the-art commercial wireless simulator to provide SINR measurements that inform our problem instances. This approach is formulated as a mathematical program to which additional constraints are added to limit the number of detectors. Solving the program produces a placement of detectors whose performance is then evaluated for classifier accuracy. We present preliminary results, combining both simulation data and real-world data to evaluate the performance our approach against two competitors inspired by the literature.

Conference Presentation

Citation Download Citation

Surya Kodipaka, Ajaya Dahal, Logan Smith, Nicholas Smith, Bo Tang, John E. Ball, and Maxwell Young "Adversarial indoor signal detection", Proc. SPIE 11756, Signal Processing, Sensor/Information Fusion, and Target Recognition XXX, 1175615 (12 April 2021); https://doi.org/10.1117/12.2587525

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