Physical Layer Security of RIS-Assisted Communications Under Electromagnetic Interference

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