13
WSN Authentication using RF Fingerprints (D.
Knox and T. Kunz)
RF Fingerprints
§RF
Fingerprints are susceptible to noise
–Any
biometric indicator suffers from the same problem
–Noise
could be channel-dependent
–Noise
could be time-varying
§Researchers
have shown that RF Fingerprints can have good accuracy under
laboratory conditions
–98%
matching accuracy against templates stored in a database (previous training data
required for this level of accuracy).
–No
detailed analysis of relative contributions of noise sources
§Researchers
have advocated their use for infrastructure-type WLANs and
also recently for WSN’s
–No
implementations on real hardware yet