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

MingQuan Fan ()
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MingQuan Fan: Southwest China Research Institute of Electronic Equipment

Telecommunication Systems: Modelling, Analysis, Design and Management, 2024, vol. 87, issue 2, No 2, 287-299

Abstract: 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.

Keywords: Satellite communication; Data confidentiality; Eavesdropper; MFSK; Jamming attack (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s11235-024-01146-1

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