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Secure full-duplex two-way relaying for SWIPT
journal contributionposted on 2018-01-18, 10:46 authored by Alexander A. Okandeji, Muhammad R. Khandaker, Kai-Kit Wong, Gan Zheng, Yangyang Zhang, Zhongbin Zheng
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.
This work was supported in part by the Presidential Special Scholarship Scheme for Innovation and Development, Federal Republic of Nigeria, and in part by the EPSRC under Grant EP/N008219/1. The work of G. Zheng was supported by the U.K. EPSRC under Grant EP/N007840/1.
- Mechanical, Electrical and Manufacturing Engineering
Published inIEEE Wireless Communications Letters
CitationOKANDEJI, A.A. ... et al, 2017. Secure full-duplex two-way relaying for SWIPT. IEEE Wireless Communications Letters, 7 (3), pp.336-339.
- VoR (Version of Record)
Publisher statementThis work is made available according to the conditions of the Creative Commons Attribution 3.0 Unported (CC BY 3.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/
NotesThis is an Open Access Article. It is published by IEEE under the Creative Commons Attribution 3.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/3.0/