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Joint beamforming and jamming optimization for secure transmission in MISO-NOMA networks

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Zhao, Nan, Wang, Wei, Wang, Jingjing, Chen, Yunfei, Lin, Yun, Ding, Zhiguo and Beaulieu, Norman C. (2019) Joint beamforming and jamming optimization for secure transmission in MISO-NOMA networks. IEEE Transactions on Communications, 67 (3). pp. 2294-2305. doi:10.1109/TCOMM.2018.2883079

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Official URL: https://doi.org/10.1109/TCOMM.2018.2883079

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Abstract

Non-orthogonal multiple access (NOMA) has been developed as a key multi-access technique for 5G. However, secure transmission remains a challenge in NOMA. Especially, the user with weakest channel is most threatened by eavesdropping, due to its highest transmit power. Two schemes are proposed to generate artificial jamming at the NOMA base station (BS), aiming at disrupting the potential eavesdropping without affecting the legitimate transmission. In the first scheme, the transmit power of artificial jamming is maximized, with its received power at each receiver higher than that of other users. Thus, the jamming signal can be eliminated via successive interference cancellation (SIC) before others. When the transmit power of the BS is inadequate, the transmit jamming power is maximized with the jamming signal zero-forced at each receiver. Thus, the legitimate transmission is not affected by the jamming, and the eavesdropping can be disrupted effectively. Due to the non-convexity of these two optimization problems, we first convert them to convex ones and then provide an iterative algorithm to solve them. Simulation results are presented to show the effectiveness of the proposed schemes in guaranteeing the security of NOMA networks.

Item Type: Journal Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions: Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH): Wireless communication systems -- Security measures, Beamforming, Multiple access protocols (Computer network protocols), Radio -- Interference
Journal or Publication Title: IEEE Transactions on Communications
Publisher: IEEE
ISSN: 0090-6778
Official Date: March 2019
Dates:
DateEvent
March 2019Published
23 November 2018Available
14 November 2018Accepted
Volume: 67
Number: 3
Page Range: pp. 2294-2305
DOI: 10.1109/TCOMM.2018.2883079
Status: Peer Reviewed
Publication Status: Published
Publisher Statement: © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Access rights to Published version: Restricted or Subscription Access
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
61871065[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
ISN19-02 [State Key Laboratory of Integrated Services Networks]Xidian Universityhttp://dx.doi.org/10.13039/501100005320
DUT17JC43Fundamental Research Funds for the Central UniversitiesUNSPECIFIED
UNSPECIFIEDXinghai Scholars ProgramUNSPECIFIED
EP/L025272/2[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266
690750[ERC] Horizon 2020 Framework Programmehttp://dx.doi.org/10.13039/100010661
61771154[NSFC] National Natural Science Foundation of Chinahttp://dx.doi.org/10.13039/501100001809
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