Short-packet covert communication with transmission time uncertainty
Abstract
In this paper, we investigate the short-packet covert communication with transmission time uncertainty, and propose the random sub-slot selection (RSS) covert transmission scheme by exploiting the random transmission time to guarantee a higher level of communication covertness. In particular, we derive the covertness constraint and effective covert throughput (ECT) for the proposed RSS scheme, which shows that the sub-slot partition in a fixed time slot duration introduces a non-trivial tradeoff between the communication covertness and reliability from the aspects of transmission time uncertainty and packet error probability. Inspired by this, we further formulate and solve the optimization problem to maximize ECT by designing the transmit power and the number of sub-slots in each time slot. Finally, numerical results are provided to demonstrate the superiority of proposed RSS scheme relative to the existing covert communication scheme without transmission time uncertainty.
RAS ID
52713
Document Type
Conference Proceeding
Date of Publication
8-15-2022
Funding Information
National Natural Science Foundation of China (Grants 62071486, 62171464, 62071005) / Natural Science Foundation on Frontier Leading Technology Basic Research Project of Jiangsu (Grant BK20212001) / Key R & D Program of Jiangsu Province Key project and topics (Grant BE2021095)
School
School of Science
Copyright
subscription content
Publisher
IEEE
Recommended Citation
Lu, X., Yang, W., & Yan, S. (2022). Short-packet covert communication with transmission time uncertainty. DOI: https://doi.org/10.1109/ICCCS55155.2022.9846514
Comments
Lu, X., Yang, W., & Yan, S. (2022). Short-packet covert communication with transmission time uncertainty. In 2022 7th International Conference on Computer and Communication Systems (ICCCS) (pp. 628-632). IEEE. https://doi.org/10.1109/ICCCS55155.2022.9846514