Covert Wireless Communication Scheme Based on Random Dynamic Diffusion of Energy over Multipath Channel

LIN Yuda; JIN Liang; HUANG Kaizhi; LOU Yangming; SUN Xiaoli

doi:10.11999/JEIT211396

Volume 45 Issue 2

Feb. 2023

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LIN Yuda, JIN Liang, HUANG Kaizhi, LOU Yangming, SUN Xiaoli. Covert Wireless Communication Scheme Based on Random Dynamic Diffusion of Energy over Multipath Channel[J]. Journal of Electronics & Information Technology, 2023, 45(2): 505-515. doi: 10.11999/JEIT211396

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LIN Yuda, JIN Liang, HUANG Kaizhi, LOU Yangming, SUN Xiaoli. Covert Wireless Communication Scheme Based on Random Dynamic Diffusion of Energy over Multipath Channel[J]. Journal of Electronics & Information Technology, 2023, 45(2): 505-515. doi: 10.11999/JEIT211396

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Covert Wireless Communication Scheme Based on Random Dynamic Diffusion of Energy over Multipath Channel

doi: 10.11999/JEIT211396

PLA Strategic Support Force Information Engineering University, Zhengzhou 450002, China

Funds: The National Natural Science Foundation of China (61871404), The Key Universities and Academic Disciplines Construction Project

Received Date: 2021-12-01
Accepted Date: 2022-03-25
Rev Recd Date: 2022-03-16

Available Online: 2022-03-30

Publish Date: 2023-02-07

Abstract

Abstract

Focusing on the unknown and illegal detecting threat of wireless communication, a random path hopping scheme is proposed in this paper, which achieves random dynamic diffusion of signal energy on multipath. Firstly, a covert transmission strategy is constructed based on the multipath channel as well as the detecting model. Secondly, the closed expressions of the enemy's average received SNR (Signal to Noise Ratio) are derived respectively under the proposed scheme, the random path hopping scheme and the classic maximum ratio transmission scheme, and the minimal average covert probability is calculated by the curve fitting method for the qualitative and quantitative evaluation of covert performance. Finally, the closed expression of the legal receiver’s SNR is also derived for evaluating rate performance. The simulations reveal that the proposed scheme not only has the advantage of covert performance in the general case of enemy unknown, but also can solve the disabled problem of covert communication most effectively in the extreme case of enemy approaching the legal receiver.
- Covert wireless communication,
- Multipath channel,
- Covert probability

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References(16)

References

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