Securing ISAC Against Pilot Spoofing Attack_A Deep Plug-and-Play Countermeasure

Published in IEEE Wireless Communications Letters, 2025

**Abstract**:In this letter, we propose a deep plug-and-play prior approach for designing a robust integrated sensing and communication (ISAC) precoder that combats the pilot spoofing attack for the first time. Specifically, our precoder design is formulated as a robust optimization problem that maximizes the sensing power while minimizing the eavesdropping signal to-interference-plus-noise ratio simultaneously, even without the need for knowledge of the victim’s and eavesdropper’s channel state information. To address this challenging design problem, a deep learning network is exploited to minimize the information leakage, which is subsequently integrated and plugged in as a modular component into an iterative precoder optimization algorithm, under a communication constraint. Simulation results confirm the secrecy performance of our proposed deep prior induced ISAC precoder design approach. **Index Terms**:Integrated sensing and communication, dual functional precoder, pilot spoofing attack, deep plug-and-play prior.

Recommended citation: Guo Li; Chao Wang; Haibin Zhang; Liang Jin; Naofal Al-Dhahir"Securing ISAC Against Pilot Spoofing Attack_A Deep Plug-and-Play Countermeasure" IEEE Wireless Communications Letters (2025).
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