Multi-antenna covert communications with a BPP field of wardens
Author Identifier
Shihao Yan: https://orcid.org/0000-0002-4586-1926
Document Type
Conference Proceeding
Publication Title
International Conference on Ubiquitous Communication 2024, Ucom 2024
First Page
91
Last Page
96
Publisher
IEEE
School
School of Science / ECU Security Research Institute
Abstract
This paper considers a multi-antenna jamming to facilitate covert communications with multiple wardens. Specif-ically, the jammer generates artificial noise (AN) with random power to deliberately create interference to prevent a communication being detected by an adversarial warden (Willie), where Warden's location is modeled as a uniform binomial point process (BPP). The detection performance for each warden is analyzed under line-of-sight (LoS) channels i.e., the expressions for the false alarm (PFA) and miss detection (PMD) probabilities are analytically derived. Then, the communication performance of the covert communication in terms of the channel capacity is optimized following a stochastic spatial geometry framework. Nu-merical results show that the average detection error probability (i.e., PFA+PMD) decreases with the number of Willies and also decreases as the the jammer gradually parallel to the receiver's position relative to the transmitter, which leads to the reduction in the covert throughput.
DOI
10.1109/Ucom62433.2024.10695909
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Comments
Rao, H., Yan, S., Wang, J., Peng, X., Xiao, S., & Tang, W. (2024, July). Multi-antenna covert communications with a BPP field of wardens. In 2024 International Conference on Ubiquitous Communication (Ucom) (pp. 91-96). IEEE. https://doi.org/10.1109/Ucom62433.2024.10695909