Paper Info
Title
Multi-Antenna Covert Communication With Jamming In The Presence Of A Mobile Warden
Abstract
Covert communication can hide the information transmission process from the warden to prevent adversarial eavesdropping. However, it becomes challenging when the warden can move. In this paper, we propose a covert communication scheme against a mobile warden, which maximizes the connectivity throughput between a multi-antenna transmitter and a full-duplex jamming receiver with the covert outage probability (COP) limit.First, we analyze the monotonicity of the COP to obtain the optimal location the warden can move. Then, under this worst situation, we optimize the transmission rate, the transmit power and the jamming power of covert communication to maximize the connection throughput. This problem is solved in two stages. Under this worst situation, we first maximize the connection probability over the transmit-to-jamming power ratio within the maximum allowed COP for a fixed transmission rate. Then, the Newton's method is applied to maximize the connection throughput via optimizing the transmission rate iteratively. Simulation results are presented to evaluate the effectiveness of the proposed scheme.
Year
DOI
Venue
2021
10.1109/VTC2021-Spring51267.2021.9448800
2021 IEEE 93RD VEHICULAR TECHNOLOGY CONFERENCE (VTC2021-SPRING)
Keywords
DocType
Citations 
Active warden, artificial jamming, covert communication, full-duplex, low probability of detection
Conference
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Xinying Chen1243.11
Zheng Chang200.34
Nan Zhao31591123.85
Yunfei Chen411745.25
Fei Yu55116335.58
Timo Hamalainen6369.94