Research Article
Secure Transmission Scheme in MIMO Communication Systems with Simultaneous Wireless Information and Power Transfer
@INPROCEEDINGS{10.4108/eai.15-8-2015.2260599, author={shaohang wang and baoyun wang}, title={Secure Transmission Scheme in MIMO Communication Systems with Simultaneous Wireless Information and Power Transfer}, proceedings={10th EAI International Conference on Communications and Networking in China}, publisher={IEEE}, proceedings_a={CHINACOM}, year={2015}, month={9}, keywords={simultaneous wireless information and power transfer (swipt); secure transmission; energy harvesting; artificial noise (an)}, doi={10.4108/eai.15-8-2015.2260599} }- shaohang wang
baoyun wang
Year: 2015
Secure Transmission Scheme in MIMO Communication Systems with Simultaneous Wireless Information and Power Transfer
CHINACOM
IEEE
DOI: 10.4108/eai.15-8-2015.2260599
Abstract
In this paper, we study the secure transmission scheme in multiple-input multiple-output (MIMO) communication systems with simultaneous wireless information and power transfer (SWIPT), in which both power splitting (PS) receiver and artificial noise (AN) are taken into account. We aim to maximize the achievable secrecy rate at the desired receiver by jointly designing precoding matrix, AN covariance matrix and PS ratio at the desired receiver, under the total transmit power constraint and the minimum energy harvesting constraints at all the receivers. The formulated optimization problem is nonconvex and hard to tackle. Then, by transforming this problem into a canonical DC (difference of convex function) programming, we propose an iterative method to solve this problem, and analyze the convergence of the proposed algorithm. Simulation results are provided to show the efficiency of our proposed scheme.