Journal
IEEE COMMUNICATIONS LETTERS
Volume 19, Issue 1, Pages 74-77Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LCOMM.2014.2375191
Keywords
Authentication; multi-carrier transmission; physical-layer security; wireless channel
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Funding
- National Science Foundation of China [61372123, 61271335, 61032004]
- Key University Science Research Project of Jiangsu Province [14KJA510003]
- Scientific Research Foundation of NJUPT [NY213002]
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We propose a novel physical-layer challenge-response authentication scheme for multi-carrier transmission. This new scheme exploits both the reciprocity and randomness of the phase responses over multi-carrier channels, and ensures strong security since the channel-phase response is very sensitive to the distance between the transmitter and receiver. A binary hypothesis testing approach is formulated for authentication, which shows a close connection to the problem of pseudo-noise (PN)code acquisition. The proposed scheme can achieve desirable authentication performance even at the signal-to-noise ratio of 5 dB for Rayleigh fading channels.
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