Jamming Signal Cancellation by Channel Inversion Power Control for Preserving Covert Communications

• Autorzy: Hai Ngo Thanh , Khoa Dang Le

Identyfikatory

DOI

10.26636/jtit.2023.169323

• Języki publikacji: EN

Abstrakty

EN

Uninformed jammers are used to facilitate covert communications between a transmitter and an intended receiver under the surveillance of a warden. In reality, the signals the uniformed jammer emits to make the warden’s decision uncertain have inadvertently interfered with the detection of the intended receiver. In this paper, we apply truncated channel inversion power control (TCIPC) to both the transmitter and the uninformed jammer. The TCIPC scheme used on the uninformed jammer may help the intended receiver remove jamming signals using the successive interference cancellation (SIC) technique. Under the assumption that the warden knows the channel coefficient between two intended transceivers and achieves the optimal detection power threshold, we form the optimization problem to maximize the effective transmission rate (ETR) under covertness and decoding constraints. With the aim of enhancing covertness-related performance, we achieve the optimal power control parameters and determine system parameter-related constraints required for the existence of these solutions. According to the simulations, the use of the TCIPC scheme on the uninformed jammer significantly improves covertness-related performance in comparison to that of random power control (RPC) and constant power control (CPC) schemes. In addition, simulation results show that, for the TCIPC scheme: 1) the maximum ETR tends to converge as the transmitter’s or the uninformed jammer’s maximum transmit power increases, and 2) there exists an optimal value of the transmitter’s predetermined transmission rate to achieve the optimal performance.

Słowa kluczowe

EN

channel inversion power control; covert wireless communication; effective transmission rate; uninformed jammer

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2023
• Tom: nr 2
• Strony: 22--34
• Opis fizyczny: Bibliogr. 27 poz., rys., wykr.

Twórcy

autor

Hai Ngo Thanh

• Department of Telecommunications and Networks, University of Science, VNU-HCM, Ho Chi Minh, Viet Nam

• https://orcid.org/0000-0002-6865-4305

autor

Khoa Dang Le

• Department of Telecommunications and Networks, University of Science, VNU-HCM, Ho Chi Minh, Viet Nam

• https://orcid.org/0000-0003-0024-3419

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).