Title
Covert Communication under Channel Uncertainty and Noise Uncertainty
Abstract
Covert or low probability of detection communication is crucial to protect user privacy and provide a strong security. We analyze the joint impact of imperfect knowledge of the channel gain (channel uncertainty) and noise power (noise uncertainty) on the average probability of detection error at the eavesdropper and the covert throughput in Rayleigh fading channel. We characterize the covert throughput gain provided by the channel uncertainty as well as the covert throughput loss caused by the channel fading as a function of the noise uncertainty. Our result shows that the channel fading is essential to hiding the signal transmission, particularly when the noise uncertainty is below a threshold and/or the receive SNR is above a threshold. The impact of the channel uncertainty on the average probability of detection error and covert throughput is more significant when the noise uncertainty is larger.
Year
DOI
Venue
2019
10.1109/ICC.2019.8761935
IEEE International Conference on Communications
Keywords
Field
DocType
Covert communication,noise uncertainty,channel uncertainty,energy detection,covert throughput
Transmission (telecommunications),Rayleigh fading,Noise power,Computer science,Fading,Communication channel,Covert,Real-time computing,Throughput,Statistical power
Conference
ISSN
Citations 
PageRank 
1550-3607
0
0.34
References 
Authors
0
2
Name
Order
Citations
PageRank
Hien Q. Ta121.36
Sang Wu Kim227047.79