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arXiv · 2203.08370

Physical Layer Security of RIS-Assisted Communications under Electromagnetic Interference

José David Vega Sánchez·Georges Kaddoum·F. Javier López-Martínez
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Abstract

This work investigates the impact of the ever-present electromagnetic interference (EMI) on the achievable secrecy performance of reconfigurable intelligent surface (RIS)-aided communication systems. We characterize the end-to-end RIS channel by considering key practical aspects such as spatial correlation, transmit beamforming vector, phase-shift noise, the coexistence of direct and indirect channels, and the presence of strong/mild EMI on the receiver sides. We show that the effect of EMI on secrecy performance strongly depends on the ability of the eavesdropper to cancel such interference; this puts forth the potential of EMI-based attacks to degrade physical layer security in RIS-aided communications.

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José David Vega Sánchez, Georges Kaddoum, F. Javier López-Martínez. 2022-03-16. Physical Layer Security of RIS-Assisted Communications under Electromagnetic Interference. https://arxiv.org/abs/2203.08370

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