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Robust Proactive Monitoring via Jamming With Deterministically Bounded Channel Errors

Considering that a legitimate full-duplex monitor aims to intercept the suspicious wireless transmission, we study the robust jamming design problem where imperfect channel state information is assumed. We model channel estimation errors as deterministically bounded and define the successful monitoring event as that the signal-to-interference-plus-noise ratio (SINR) at the legitimate monitor is higher than the SINR at the suspicious receiver. To increase the worst-case probability of successful monitoring, we propose a robust proactive monitoring via jamming scheme. From simulation results, our proposed robust scheme is superior to the nonrobust one.