Power Allocation Tradeoffs in Multicarrier Authentication Systems
P. L. Yu, J. S. Baras, B. M. Sadler
Proceedings of 26th Army Science Conference, pp.1-5, Orlando, FL, December 1-4, 2008.
Physical layer authentication techniques exploit signal characteristics to uniquely identify radios. We describe how multicarrier systems may use such techniques to stealthily authenticate while maintaining high levels of security and robustness. We show that with channel state information (CSI) at the transmitter and receiver, multicarrier authentication systems can further improve performance by carefully allocating the authentication power each carrier.