Covert wireless communication with random frequency diverse array

Author Identifier (ORCID)

Shihao Yan

https://orcid.org/0000-0002-4586-1926

Abstract

In this work, we consider a covert communication system with a random frequency diverse array (RFDA) at the transmitter Alice, while the warden Willie's location follows a binomial point process (BPP) around Alice. Specifically, we consider two scenarios, where Alice's location is known or unknown to Willie, for which Willie's detection performance is thoroughly anzlyzed in terms of deriving his optimal detection threshold and the minimum detection error rate. Our analysis explicitly reveals that a higher covert rate can be achieved when Willie does not know Alice's location and the performance gap decreases as the BPP radius increases. In addition, the conducted analysis also shows that the achievable covert rate increases with the number of antenna elements at Alice and the BPP radius for Willie, which is supported by the characterized best detection performance at Willie. Furthermore, we clearly show that a certain covert rate is still achievable from Alice to the receiver Bob even when Bob is further away from Alice relative to Willie's potential location, which shows one obvious benefit of using RFDA in covert communications.

Document Type

Journal Article

Date of Publication

2024

Volume

73

Issue

1

Publication Title

IEEE Transactions on Vehicular Technology

Publisher

IEEE

School

School of Science / Security Research Institute

RAS ID

61887

Funders

National Natural Science Foundation of China / Strategic Priority Research Program of the Chinese Academy of Sciences

Comments

Li, L., Chen, Z., Chen, R., Yang, L., & Yan, S. (2024). Covert wireless communication with random frequency diverse array. IEEE Transactions on Vehicular Technology, 73(1), 1474-1478. https://doi.org/10.1109/TVT.2023.3310986

Copyright

subscription content

First Page

1473

Last Page

1478

Share

 
COinS
 

Link to publisher version (DOI)

10.1109/TVT.2023.3310986