Secrecy Rate Region Enhancement in Multiple Access Wiretap Channel

• Autorzy: Shah Shahid Mehraj

Identyfikatory

DOI

10.26636/jtit.2022.152021

• Języki publikacji: EN

Abstrakty

EN

It is commonly known that physical layer security is achieved with a trade-off in terms of the achievable rate. Hence, security constraints generate rate losses in wiretap channels. To mitigate such rate losses in multi-user channels, we propose a coding/decoding scheme for multi-user multiple access wiretap channel (MAC-WT), where previously transmitted messages are used as a secret key to enhance the secrecy rates of the transmitting users, until the usual Shannon capacity region of a multiple access channel (MAC) is achieved without the secrecy constraint. With this coding scheme, all messages transmitted in the recent past are secure with respect to all the information of the eavesdropper till now. To achieve this goal, we introduce secret key buffers at both the users and the legitimate receiver. Finally, we consider a fading MAC-WT and show that with this coding/decoding scheme, we can achieve the capacity region of a fading MAC channel (in the ergodic sense).

Słowa kluczowe

EN

multiple access channels; physical layer security; strong secrecy; wiretap channel

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2022
• Tom: nr 2
• Strony: 14--25
• Opis fizyczny: Bibliogr. 27 poz., rys.

Twórcy

autor

Shah Shahid Mehraj

• Communication Control & Learning Lab, Department of Electronics and Communication Engineering, National Institute of Technology, Srinagar, Jammu and Kashmir, India

• https://orcid.org/0000-0002-8583-7904

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).