An Implementation of Physical Layer Authentication Using Software Radio
Abstract
Authentication is the process where claims of identity are verified and is a critical first step for sensitive communications. We propose a physical layer authentication technique that identifies radios based on their unique signal characteristics. The transmit signal is superimposed with a secret message-dependent authentication tag for the receiver to detect and validate. We present experimental results that indicate the usefulness of this technique: it has low impact on packet error, gives high quality authentication decisions, and is resistant to collisions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 2009
- Accession Number
- ADA502531
Entities
People
- Brian M. Sadler
- John Baras
- Paul K. L. Yu
Organizations
- United States Army Research Laboratory