Secure transmission for cooperative NOMA systems with source‐relay selection

Abstract Both cooperative non‐orthogonal multiple access (NOMA) and physical layer security (PLS) are promising techniques for future communication systems. This paper investigates the PLS performance of a cooperative NOMA system where multiple sources transmit a superposed message to two users by u...

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Autores principales:	Shu Xu, Chen Liu, Mujun Qian, Hong Wang, Wenfeng Sun
Formato:	article
Lenguaje:	EN
Publicado:	Wiley 2021
Materias:	Telecommunication TK5101-6720
Acceso en línea:	https://doaj.org/article/13ecbd1adca34b86b2e2d6ce858048b2
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spelling	oai:doaj.org-article:13ecbd1adca34b86b2e2d6ce858048b22021-12-01T07:07:54ZSecure transmission for cooperative NOMA systems with source‐relay selection1751-86361751-862810.1049/cmu2.12293https://doaj.org/article/13ecbd1adca34b86b2e2d6ce858048b22021-12-01T00:00:00Zhttps://doi.org/10.1049/cmu2.12293https://doaj.org/toc/1751-8628https://doaj.org/toc/1751-8636Abstract Both cooperative non‐orthogonal multiple access (NOMA) and physical layer security (PLS) are promising techniques for future communication systems. This paper investigates the PLS performance of a cooperative NOMA system where multiple sources transmit a superposed message to two users by utilizing either amplify‐and‐forward (AF) or decode‐and‐forward (DF) relays in both non‐colluding and colluding eavesdropper scenarios. A source‐relay selection scheme is proposed for this system aiming at improving the secrecy performance. Additionally, the closed‐form expression of the secrecy outage probability (SOP) is derived for the proposed source‐relay selection schemes. It is demonstrated that in the proposed schemes, the theoretical results match well with the simulation results. In addition, the proposed schemes outperform the conventional OMA system in terms of SOP.Shu XuChen LiuMujun QianHong WangWenfeng SunWileyarticleTelecommunicationTK5101-6720ENIET Communications, Vol 15, Iss 20, Pp 2537-2551 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Telecommunication TK5101-6720
spellingShingle	Telecommunication TK5101-6720 Shu Xu Chen Liu Mujun Qian Hong Wang Wenfeng Sun Secure transmission for cooperative NOMA systems with source‐relay selection
description	Abstract Both cooperative non‐orthogonal multiple access (NOMA) and physical layer security (PLS) are promising techniques for future communication systems. This paper investigates the PLS performance of a cooperative NOMA system where multiple sources transmit a superposed message to two users by utilizing either amplify‐and‐forward (AF) or decode‐and‐forward (DF) relays in both non‐colluding and colluding eavesdropper scenarios. A source‐relay selection scheme is proposed for this system aiming at improving the secrecy performance. Additionally, the closed‐form expression of the secrecy outage probability (SOP) is derived for the proposed source‐relay selection schemes. It is demonstrated that in the proposed schemes, the theoretical results match well with the simulation results. In addition, the proposed schemes outperform the conventional OMA system in terms of SOP.
format	article
author	Shu Xu Chen Liu Mujun Qian Hong Wang Wenfeng Sun
author_facet	Shu Xu Chen Liu Mujun Qian Hong Wang Wenfeng Sun
author_sort	Shu Xu
title	Secure transmission for cooperative NOMA systems with source‐relay selection
title_short	Secure transmission for cooperative NOMA systems with source‐relay selection
title_full	Secure transmission for cooperative NOMA systems with source‐relay selection
title_fullStr	Secure transmission for cooperative NOMA systems with source‐relay selection
title_full_unstemmed	Secure transmission for cooperative NOMA systems with source‐relay selection
title_sort	secure transmission for cooperative noma systems with source‐relay selection
publisher	Wiley
publishDate	2021
url	https://doaj.org/article/13ecbd1adca34b86b2e2d6ce858048b2
work_keys_str_mv	AT shuxu securetransmissionforcooperativenomasystemswithsourcerelayselection AT chenliu securetransmissionforcooperativenomasystemswithsourcerelayselection AT mujunqian securetransmissionforcooperativenomasystemswithsourcerelayselection AT hongwang securetransmissionforcooperativenomasystemswithsourcerelayselection AT wenfengsun securetransmissionforcooperativenomasystemswithsourcerelayselection
_version_	1718405398263758848

Secure transmission for cooperative NOMA systems with source‐relay selection

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