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Enhancing physical layer security via information hiding and chaotic frequency-hopping signal

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  • MingQuan Fan

    (Southwest China Research Institute of Electronic Equipment)

Abstract

With the development of super computation ability and invention of quantum computer, safeguarding network layer data confidentiality by computation based encryption method suffers great impact. As a result, people pay more attention to safeguarding data confidentiality in physical layer of wireless satellite communication system. In this paper, a groundbreaking method for enhancing physical layer security (PLS) by information hiding technology is proposed, that is, embedding secret information into chaotic frequency-hopping signal by multilevel frequency shift keying (MFSK) modulation. First, the secret information to be transmitted is encrypted with chaotic binary sequence. Secondly, according to frequency-hopping pattern and chaotic address sequence, select suitable modulation order and specific frequency point corresponding to each encrypted data block. Finally, the encrypted information is embedded into frequency-hopping Sine signal by MFSK modulation. Experimental results indicate that the proposed scheme is robust against various jamming attacks, such as power attenuation, noise adding, single-tone jamming, key exhaustive search, etc.

Suggested Citation

  • MingQuan Fan, 2024. "Enhancing physical layer security via information hiding and chaotic frequency-hopping signal," Telecommunication Systems: Modelling, Analysis, Design and Management, Springer, vol. 87(2), pages 287-299, October.
    • Handle: RePEc:spr:telsys:v:87:y:2024:i:2:d:10.1007_s11235-024-01146-1
    DOI: 10.1007/s11235-024-01146-1
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