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Enhancing Frequency Hopping Security in ISAC Systems: A Physical Layer Security Approach | IEEE Conference Publication | IEEE Xplore

Enhancing Frequency Hopping Security in ISAC Systems: A Physical Layer Security Approach


Abstract:

This paper explores the security vulnerabilities in Frequency Hopping (FH) signals within Integrated Sensing and Communication (ISAC) systems, focusing on the risks of ea...Show More

Abstract:

This paper explores the security vulnerabilities in Frequency Hopping (FH) signals within Integrated Sensing and Communication (ISAC) systems, focusing on the risks of eavesdropping and location privacy breaches due to FH sequence leakage. Unlike existing methods using Channel Reciprocity-based Key Generation (CRKG) at higher communication layers, this research pioneers a novel approach. CRKG is creatively applied to enhance security in the physical layer of FH signal transmission. Innovative strategies, including Multiple Input Multiple Output (MIMO)-FH modulation on FH sub-pulses and vector quantization, generate shared secrets as FH sequences, increasing entropy and randomness significantly. The study involves the embedding of information into MIMO-FH sub-pulses using Phase Shift Keying (PSK) modulation techniques, demon-strating superiority over traditional techniques with enhanced FH sequence similarity, higher entropy, randomness, and reduced Bit Error Rates (BER). These findings significantly advance the security and privacy of FH communication in ISAC applications.
Date of Conference: 19-21 March 2024
Date Added to IEEE Xplore: 03 September 2024
ISBN Information:
Conference Location: Leuven, Belgium

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