Shared-aperture Jammer Assisted Covert Communication Using Time Modulated Array

MA Yue; MA Ruiqian; YANG Weiwei; LIN Zhi; MIAO Chen; WU Wen

doi:10.11999/JEIT231115

Volume 46 Issue 5

May 2024

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MA Yue, MA Ruiqian, YANG Weiwei, LIN Zhi, MIAO Chen, WU Wen. Shared-aperture Jammer Assisted Covert Communication Using Time Modulated Array[J]. Journal of Electronics & Information Technology, 2024, 46(5): 1977-1985. doi: 10.11999/JEIT231115

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MA Yue, MA Ruiqian, YANG Weiwei, LIN Zhi, MIAO Chen, WU Wen. Shared-aperture Jammer Assisted Covert Communication Using Time Modulated Array[J]. Journal of Electronics & Information Technology, 2024, 46(5): 1977-1985. doi: 10.11999/JEIT231115

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Shared-aperture Jammer Assisted Covert Communication Using Time Modulated Array

doi: 10.11999/JEIT231115

MA Yue¹,
MA Ruiqian^{2
,
,},
YANG Weiwei³,
LIN Zhi²,
MIAO Chen¹,
WU Wen¹

1.
Key Laboratory of Near-Range RF Sensing ICs & Microsystems, Ministry of Education, Nanjing University of Science and Technology, Nanjing 210094, China
2.
College of Electronic Engineering, National University of Defense Technology, Hefei 230037, China
3.
College of Communications Engineering, Army Engineering University of PLA, Nanjing 210007, China

Funds: The Natural Science Foundation of Jiangsu Province (BK20230916), The National Natural Science Foundation of China (62301254, 62171464), China Postdoctoral Science Foundation (2023M731700), The Research and Innovation Fund of National University of Defense Technology (22-ZZCX-07), The Comprehensive National Science Center of Hefei

Received Date: 2023-10-17
Rev Recd Date: 2024-01-26

Available Online: 2024-01-31

Publish Date: 2024-05-30

Abstract

Abstract

The short packet covert communication using a shared-aperture jammer assisted Time-Modulated Array (TMA) is investigated for the first time in this paper. Firstly, a TMA architecture for shared-aperture jammer is proposed and an optimization method is introduced that maximizes the gain of the target direction while forming interference in non-target directions. Based on this model, closed-form expressions for the covertness constraint and covert throughput are derived. Furthermore, the transmission power and blocklength are optimized to maximize the covert throughput. Simulation results show that there exists an optimum blocklength that maximizes the covert throughput, and the proposed scheme outperforms the benchmark scheme in terms of covert communication performance.
- Covert communication,
- Time Modulated Array(TMA),
- Shared-aperture jammer,
- Artificial noise

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References(32)

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