Secure Full-Duplex Two-Way Relaying for SWIPT

Autor:	Okandeji, Alexander A., Khandaker, Muhammad R. A., Wong, Kai-Kit, Zheng, Gan, Zhang, Yangyang, Zheng, Zhongbin
Rok vydání:	2017
Předmět:	Computer Science - Information Theory
Druh dokumentu:	Working Paper
Popis:	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. Comment: Submitted to IEEE Wireless Communications Letters
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1709.08237 Zobrazit plný text záznamu View this record from Arxiv