Proceedings of the International Conference on Computer Networks and Communication Technology (CNCT 2016)

Joint Beamforming and the Artificial Noise Security Scheme Based on Successive Convex Approximation in Multi-relay Cognitive Network

Authors
Xian-zhong XIE, Xiang-yu XIE, Shu TANG, Jiu-jiu CHEN
Corresponding Author
Xian-zhong XIE
Available Online December 2016.
DOI
10.2991/cnct-16.2017.35How to use a DOI?
Keywords
Cognitive Radio, Physical layer security, Multiple Relay, Successive Convex Approximation, Joint optimization
Abstract

To solve the transmission problemof physical layer security(PLS) in relay cognitive radio network (CRN), this paper investigates the PLS transmission scheme of multiple relays CRN, which contains two pairs of secondary nodes without direct link each other. Compared with the model that consists ofa pair of secondary node users and a single relay in terms of theoretical analysis and optimization, the proposed scheme is more complicated. To maximizethe joint secret rate of the secondary users,power allocation of the twosecondarysource transmission node withbeamforming andartificial noise assist (PBNAS) is obtained. Furthermore, exploiting the semidefinite programming theory (SDR) and the successive convex approximation (SCA) method, the original complex nonconvex problem is transformed into a convex optimization problem, and the iterative procedure is summarized.Finally, the security transmission rate versus different number relays andrelays total power is simulated. The simulation results show that the security performance of the PBNAS scheme is the best.

Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the International Conference on Computer Networks and Communication Technology (CNCT 2016)
Series
Advances in Computer Science Research
Publication Date
December 2016
ISBN
978-94-6252-301-2
ISSN
2352-538X
DOI
10.2991/cnct-16.2017.35How to use a DOI?
Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Xian-zhong XIE
AU  - Xiang-yu XIE
AU  - Shu TANG
AU  - Jiu-jiu CHEN
PY  - 2016/12
DA  - 2016/12
TI  - Joint Beamforming and the Artificial Noise Security Scheme Based on Successive Convex Approximation in Multi-relay Cognitive Network
BT  - Proceedings of the International Conference on Computer Networks and Communication Technology (CNCT 2016)
PB  - Atlantis Press
SP  - 254
EP  - 264
SN  - 2352-538X
UR  - https://doi.org/10.2991/cnct-16.2017.35
DO  - 10.2991/cnct-16.2017.35
ID  - XIE2016/12
ER  -