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ISSN:
1796-2021 (Online); 2374-4367 (Print)
Abbreviated Title:
J. Commun.
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10.12720/jcm
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3.4
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Editor-in-Chief
Prof. Maode Ma
College of Engineering, Qatar University, Doha, Qatar
I'm very happy and honored to take on the position of editor-in-chief of JCM, which is a high-quality journal with potential and I'll try my every effort to bring JCM to a next level...
[Read More]
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2024-08-20
Vol. 19, No. 8 has been published online!
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Home
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2020
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Volume 15, No. 8, August 2020
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Cooperative Relay Transmission under Physical Layer Security for Non-Orthogonal Networks
Mohammed A. Salem
1
, Azlan B. Abd.Aziz
1
, and Mohamad Y. Alias
2
1. Faculty of Engineering and technology, Multimedia university, Malacca 75450, Malaysia
2. Faculty of Engineering and technology, Multimedia university, Selangor and 63100, Malaysia
Abstract
—In this paper, the secrecy performance for a downlink cooperative non-orthogonal multiple access (NOMA) communication system is studied under two cases. In the first case, the presence of an untrusted user is studied. While, the presence of an eavesdropper node is considered in the second case. The base station transmits superimposed information signals to the half-duplex two-way relay node. The relay amplifies-and-forwards the received signal towards the users. This paper studies the effectiveness of two factors on the secrecy performance in terms of secrecy capacity. these factors are the power allocated for each user, and the distance between the untrusted user and the cooperative relay node with respect to the strong user. Moreover, this paper proposes the shared jamming signal strategy in order to enhance the physical layer security of the cooperative NOMA in the presence of an eavesdropper node. Furthermore, simulations of the secrecy capacity are presented and compared with a conventional scheme based on null-steering jamming scheme. Based on the result the proposed technique outperforms the conventional technique in terms the of secrecy capacity.
Index Terms
—Physical Layer Security (PLS), cooperative relay transmission, Non-orthogonal Multiple Access (NOMA), secrecy capacity
Cite: Mohammed A. Salem, Azlan B. Abd.Aziz, and Mohamad Y. Alias, "Cooperative Relay Transmission under Physical Layer Security for Non-Orthogonal Networks," Journal of Communications vol. 15, no. 8, pp. 633-638, August 2020. Doi: 10.12720/jcm.15.8.633-638
Copyright © 2020 by the authors. This is an open access article distributed under the Creative Commons Attribution License (
CC BY-NC-ND 4.0
), which permits use, distribution and reproduction in any medium, provided that the article is properly cited, the use is non-commercial and no modifications or adaptations are made.
6-T1084
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