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Secure Full-Duplex Two-Way Relaying for SWIPT

Okandeji, AA; Khandaker, MRA; Wong, KK; Zheng, G; Zhang, Y; Zheng, Z; (2017) Secure Full-Duplex Two-Way Relaying for SWIPT. IEEE Wireless Communications Letters , PP (99) 10.1109/LWC.2017.2776928. Green open access

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Abstract

CCBY This letter studies bi-directional secure information exchange in a simultaneous wireless information and power transfer (SWIPT) system enabled by a full-duplex (FD) multiple-input multiple-output (MIMO) amplify-and-forward (AF) relay. The AF relay injects artificial noise (AN) in order to confuse the eavesdropper. Specifically, we assume a zeroforcing (ZF) solution constraint to eliminate the residual self-interference (RSI). As a consequence, we address the optimal joint design of the ZF matrix and the AN covariance matrix at the relay node as well as the transmit power at the sources. We propose an alternating algorithm utilizing semi-definite programming (SDP) technique and one-dimensional searching to achieve the optimal solution. Simulation results are provided to demonstrate the effectiveness of the proposed algorithm.

Type: Article
Title: Secure Full-Duplex Two-Way Relaying for SWIPT
Open access status: An open access version is available from UCL Discovery
DOI: 10.1109/LWC.2017.2776928
Publisher version: http://doi.org/10.1109/LWC.2017.2776928
Language: English
Additional information: Copyright © 2017 IEEE. This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/
Keywords: Relays, Covariance matrices, Optimization, Silicon, Wireless communication, Receiving antennas, Array signal processing
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10040501
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