Intrusion detection and radio fingerprint tracking
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United States of America Patent
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Oct 13, 2020
Grant Date -
Sep 21, 2017
app pub date -
Jun 5, 2017
filing date -
Dec 18, 2012
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Abstract
A radio transmitter adjusts the spectral, amplitude, and/or phase characteristics of its transmissions to defeat radio fingerprinting identification without destroying the content of the transmissions. The transmitter determines a threshold of signal distortion that impedes RF fingerprint identification while providing an acceptable amount of degradation to data transmissions and then synthesizes a distortion of its unique RF fingerprint to impede identification. The transmitter may create RF fingerprint “personalities” to be paired with different radio protocol behaviors and subscriber terminal identification codes (e.g., MAC addresses or SMSIs) for generating different radio identities.
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