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Content Provider | IET Digital Library |
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Author | Zhang, Guangchi Li, Xueyi Cui, Miao Li, Guangping Yang, Liang |
Abstract | Simultaneous wireless information and power transfer (SWIPT) is a potential technique to solve the energy scarcity problem in wireless communication networks. Information transmission security is one of the key issues to be addressed in SWIPT. In this study, the authors consider guaranteeing the information transmission security of a multiple-input multiple-output non-regenerative relay system with SWIPT in the physical layer by designing source and relay beamforming to maximise the security rate of the system. The problem is to design the source signal and artificial noise (AN) beamforming and the relay forwarding beamforming jointly, which is highly non-convex. They first propose an alternating optimisation-based algorithm, which designs the beamforming matrices at the source and relay separately and alternately. Next, they propose a joint design algorithm which designs the source signal and AN beamforming and the relay beamforming together. Finally, they propose a non-iterative design algorithm with low complexity. The performances of the proposed design algorithms have been verified by computer simulations. |
Starting Page | 796 |
Ending Page | 804 |
Page Count | 9 |
ISSN | 17518628 |
Volume Number | 10 |
e-ISSN | 17518636 |
Issue Number | Issue 7, May (2016) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/10/7 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2015.0482 |
Journal | IET Communications |
Publisher Date | 2016-05-05 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Algebra Alternating Optimisation-based Algorithm AN Beamforming Array Signal Processing Artificial Noise Beamforming Beamforming Matrices Computer Simulations Energy Scarcity Problem Inductive Power Transmission Information Transmission Security Joint Design Algorithm Matrix Algebra MIMO Communication Noniterative Design Algorithm Optimisation Optimisation Technique Power Transfer Multiple-input Multiple-output Regenerative Relaying System Radio Frequency Power Transmission Radio Link And Equipment Radio Network Relay Forwarding Beamforming Relay Network Signal Beamforming Signal Processing And Detection Simultaneous Wireless Information And Power Transfer Source Signal SWIPT Telecommunication Telecommunication Security Wireless Communication Network |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering Computer Science Applications |
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