Journal
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
Volume 31, Issue 9, Pages 1921-1930Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSAC.2013.130923
Keywords
Low probability of detection communication; covert communication; spread spectrum communication
Funding
- National Science Foundation [CNS-0905349, CNS-1018464]
- U.S. Army Research Laboratory
- U.K. Ministry of Defence [W911NF-06-3-0001]
- Direct For Computer & Info Scie & Enginr
- Division Of Computer and Network Systems [1018464, 0905349] Funding Source: National Science Foundation
Ask authors/readers for more resources
We present a square root limit on the amount of information transmitted reliably and with low probability of detection (LPD) over additive white Gaussian noise (AWGN) channels. Specifically, if the transmitter has AWGN channels to an intended receiver and a warden, both with non-zero noise power, we prove that o(root n) bits can be sent from the transmitter to the receiver in n channel uses while lower-bounding alpha + beta >= 1 - epsilon for any epsilon > 0, where alpha and beta respectively denote the warden's probabilities of a false alarm when the sender is not transmitting and a missed detection when the sender is transmitting. Moreover, in most practical scenarios, a lower bound on the noise power on the channel between the transmitter and the warden is known and O(root n) bits can be sent in n LPD channel uses. Conversely, attempting to transmit more than O(root n) bits either results in detection by the warden with probability one or a non-zero probability of decoding error at the receiver as n -> infinity.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available