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2010
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Authenticating MIMO Transmissions Using Channel-Like Fingerprinting

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Authenticating MIMO Transmissions Using Channel-Like Fingerprinting
Abstract-- A framework for introducing an extrinsic fingerprint signal to space-time coded transmissions at the physical-layer is presented, whereby the fingerprint signal conveys a low capacity digital communication suitable for authenticating the transmission and further facilitating secure communications. A novel approach is discussed where the fingerprint signal mimics distortions similar to time-varying channel effects. Specifically, the fingerprint signal is only visible to aware receivers considering previous channel state information (CSI) and is otherwise invisible to a receiver equalizing according to current CSI. An augmented signal is created consisting of the original transmission, or primary message, and the fingerprint message. An example fingerprint signal and detection rule are presented based on a phase-shift keying approach. Simulation results including bit error rate (BER) are presented for both the primary and fingerprint signals using the 2x2 Alamouti code, and au...
Nate Goergen, W. Sabrina Lin, K. J. Ray Liu, T. Ch
Added 11 Feb 2011
Updated 11 Feb 2011
Type Journal
Year 2010
Where GLOBECOM
Authors Nate Goergen, W. Sabrina Lin, K. J. Ray Liu, T. Charles Clancy
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