Security-embedded opportunistic user cooperation with full diversity

Niu, H; Zhu, N; Sun, L; Vasilakos, AV; Sezaki, K

Security-embedded opportunistic user cooperation with full diversity

Niu, H Zhu, N Sun, L Vasilakos, AV Sezaki, K

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Publisher:: SPRINGER
Publication Type:: Journal Article
Citation:: Wireless Networks, 2016, 22, (5), pp. 1513-1522
Issue Date:: 2016-07-01

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Field	Value	Language
dc.contributor.author	Niu, H
dc.contributor.author	Zhu, N
dc.contributor.author	Sun, L
dc.contributor.author	Vasilakos, AV
dc.contributor.author	Sezaki, K
dc.date.accessioned	2022-08-12T19:58:20Z
dc.date.available	2022-08-12T19:58:20Z
dc.date.issued	2016-07-01
dc.identifier.citation	Wireless Networks, 2016, 22, (5), pp. 1513-1522
dc.identifier.issn	1022-0038
dc.identifier.issn	1572-8196
dc.identifier.uri	http://hdl.handle.net/10453/160036
dc.description.abstract	As a promising technique for wireless networks, cooperative communications is coming to maturity in both theory and practice. The main merit of the cooperation technique is its capability in providing additional transmission links to harvest the spatial diversity gain at the physical layer. However, due to the broadcast nature of wireless medium, the diversity gain can be also freely achieved at the potential eavesdropper if the cooperation is performed blindly. To solve this problem, we propose a security-embedded opportunistic user cooperation scheme (OUCS) in this paper. The OUCS first defines a concept called secrecy-providing capability (SPC) for both the source and the cooperative relays. By comparing the values of SPC of these nodes, the OUCS jointly decides whether to cooperate and with whom to cooperate from the perspective of physical layer security. The secrecy outage performance of the OUCS is then derived. From the results we prove that full diversity can be achieved (i.e., the diversity order is N + 1 for N cooperative relays), which outperforms existing alternatives. Finally, numerical results are provided to validate the theoretical analysis.
dc.language	English
dc.publisher	SPRINGER
dc.relation.ispartof	Wireless Networks
dc.relation.isbasedon	10.1007/s11276-015-1044-7
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0805 Distributed Computing, 0906 Electrical and Electronic Engineering, 1005 Communications Technologies
dc.subject.classification	Networking & Telecommunications
dc.title	Security-embedded opportunistic user cooperation with full diversity
dc.type	Journal Article
utslib.citation.volume	22
utslib.for	0805 Distributed Computing
utslib.for	0906 Electrical and Electronic Engineering
utslib.for	1005 Communications Technologies
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
utslib.copyright.status	closed_access	*
dc.date.updated	2022-08-12T19:58:19Z
pubs.issue	5
pubs.publication-status	Published
pubs.volume	22
utslib.citation.issue	5

Abstract:

As a promising technique for wireless networks, cooperative communications is coming to maturity in both theory and practice. The main merit of the cooperation technique is its capability in providing additional transmission links to harvest the spatial diversity gain at the physical layer. However, due to the broadcast nature of wireless medium, the diversity gain can be also freely achieved at the potential eavesdropper if the cooperation is performed blindly. To solve this problem, we propose a security-embedded opportunistic user cooperation scheme (OUCS) in this paper. The OUCS first defines a concept called secrecy-providing capability (SPC) for both the source and the cooperative relays. By comparing the values of SPC of these nodes, the OUCS jointly decides whether to cooperate and with whom to cooperate from the perspective of physical layer security. The secrecy outage performance of the OUCS is then derived. From the results we prove that full diversity can be achieved (i.e., the diversity order is N + 1 for N cooperative relays), which outperforms existing alternatives. Finally, numerical results are provided to validate the theoretical analysis.

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http://hdl.handle.net/10453/160036