Extrinsic Channel-Like Fingerprint Embedding for Authenticating MIMO Systems

A framework for introducing an extrinsic fingerprint signal to space-time coded transmissions at the physical layer is presented, where the fingerprint signal conveys a low capacity cryptographically secure authentication message of arbitrary length. The multi-bit digital fingerprint message conveyed by the fingerprint signal is available to all users within reception range and is used to authenticate the fingerprinted transmission. A novel approach is discussed where the fingerprint signaling mechanism mimics distortions similar to time-varying channel effects.

Provided by: Institute of Electrical & Electronic Engineers Topic: Mobility Date Added: Dec 2011 Format: PDF

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