SpecSense: Learning-Based Wideband Spectrum Sensing

Summer 2022 · JASR Systems with Raghav Subbaraman
Signals in the wild: sparse occupancy across the sub-6 GHz band, and periodic, bursty, always-on, and frequency-hopping signals

Blind detection and tracking of low-probability-of-intercept signals, developed during a research internship. A statistical approach to wideband spectrum sensing learns each signal’s arrival process from heavily undersampled observations.

With only 1–5% real-time coverage, the resulting model directs a small number of radios. An optimal cooperative scheduling algorithm extends the approach to multiple receivers, improving prediction over the state of the art.

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