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Artificial noise assisted secure interference networks with wireless power transfer
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Zhao, Nan, Cao, Yang, Richard Yu, F. , Chen, Yunfei, Jin, Minglu and Leung, Victor (2018) Artificial noise assisted secure interference networks with wireless power transfer. IEEE Transactions on Vehicular Technology, 67 (2). doi:10.1109/TVT.2017.2700475
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Official URL: http://doi.org/10.1109/TVT.2017.2700475
Abstract
Interference alignment (IA) is a remarkable technique to manage interference, and artificial noise (AN) can be utilized to combat one main threat of security, passive eavesdropping. Nevertheless, in the existing schemes AN is only eliminated at each legitimate receiver, which is a waste of energy. In this paper, we propose an AN assisted IA scheme with wireless power transfer (WPT). In the proposed scheme, AN is generated by each transmitter along with data streams, which can disrupt the eavesdropping without introducing any additional interference. Due to the fact that the transmit power of AN should be high enough to ensure the security, energy harvesting (EH) is also performed in the scheme. A power splitter is equipped at each receiver, which can divide the received signal, including desired signal, interference and AN, into two parts: one for information decoding (ID) and the other for EH. To optimize the antieavesdropping performance, the total transmit power of AN is maximized by jointly optimizing the information transmit power and the coefficient of power splitting, with the requirements of signal-to-interference-plus-noise ratio (SINR) and harvested power satisfied. Due to the non-convex nature of the problem, a suboptimal solution is also derived to calculate the closed-form solutions with extremely low computational complexity. Extensive simulation results are presented to show the effectiveness of the proposed scheme.
| Item Type: | Journal Article | ||||||||
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| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
| Divisions: | Faculty of Science > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Wireless power transmission, Wireless communication systems -- Interference | ||||||||
| Journal or Publication Title: | IEEE Transactions on Vehicular Technology | ||||||||
| Publisher: | IEEE | ||||||||
| ISSN: | 0018-9545 | ||||||||
| Official Date: | February 2018 | ||||||||
| Dates: |
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| Date of first compliant deposit: | 18 April 2017 | ||||||||
| Volume: | 67 | ||||||||
| Number: | 2 | ||||||||
| DOI: | 10.1109/TVT.2017.2700475 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Funder: | Guo jia zi ran ke xue ji jin wei yuan hui (China) [National Natural Science Foundation of China] (NSFC) | ||||||||
| Grant number: | Grant 61671101 (NSFC) |
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