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Open AccessArticle

Secure Information Transmission with Self Jamming SWIPT

1
Faculty of Science and Technology, New University of Lisbon, 2829-516 Caparica, Portugal
2
School of Computer Science and Robotics, National Research Tomsk Polytechnic University, 634050 Tomsk, Russia
3
COPELABS, Universidade Lusòfona de Humanidades e Tecnologias, 1749-024 Lisboa, Portugal
4
School of Engineering, Sri Lanka Technological Campus, 10500 Padukka City, Sri Lanka
5
UNINOVA, Monte da Caparica, 2829-516 Caparica, Portugal
*
Author to whom correspondence should be addressed.
Electronics 2020, 9(4), 587; https://doi.org/10.3390/electronics9040587
Received: 27 February 2020 / Revised: 25 March 2020 / Accepted: 25 March 2020 / Published: 30 March 2020
(This article belongs to the Special Issue Cooperative Communications for Future Wireless Systems)
This article is focused on implementing simultaneous wireless information and power transmission as a physical layer security measure by using artificial noise. A series of high energy precoded symbols is simultaneously transmitted along with the information symbols over a Rayleigh frequency selective fading channel. The high energy precoded symbols act as an artificial noise for the eavesdroppers. The energy symbols are precoded on the basis of a legitimate user’s channel matrix to form a null space vector, which eliminates the interference of energy symbols at the information symbol receiver antennas, while allowing the rectenna to harvest energy from the superimposed information and energy symbols. We analyze the secrecy rate and error rate performance at the receiver under different circumstances, and we show that the performance of the legitimate user can be improved by using the iterative block decision feedback equalization method at the receiver. View Full-Text
Keywords: simultaneous wireless information and power transmission (SWIPT); physical layer security; wiretap channel model; iterative block decision feedback equalization (IB-DFE) simultaneous wireless information and power transmission (SWIPT); physical layer security; wiretap channel model; iterative block decision feedback equalization (IB-DFE)
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MDPI and ACS Style

Rajaram, A.; Dinis, R.; Jayakody, D.N.K.; Beko, M. Secure Information Transmission with Self Jamming SWIPT. Electronics 2020, 9, 587.

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