@inproceedings{7affdfef24fb468493e80e37e7986fd1,
title = "Enhancing PHY security of MISO NOMA SWIPT systems with a practical non-linear EH Model",
abstract = "Non-orthogonal multiple-access (NOMA) and simultaneous wireless information and power transfer (SWIPT) are promising techniques to improve spectral efficiency and energy efficiency. However, the security of NOMA SWIPT systems has not received much attention in the literature. In this paper, an artificial noise-aided beamforming design problem is studied to enhance the security of a multiple-input single-output NOMA SWIPT system where a practical non-linear energy harvesting model is adopted. The problem is non-convex and challenging to solve. Two algorithms are proposed to tackle this problem based on semidefinite relaxation (SDR) and successive convex approximation. Simulation results show that a performance gain can be obtained by using NOMA compared to the conventional orthogonal multiple access. It is also shown that the performance of the algorithm using a cost function is better than the algorithm using SDR at the cost of a higher computation complexity.",
keywords = "Non-linear energy harvesting model, Non-orthogonal multiple access, Physical-layer security, Resource allocation",
author = "Fuhui Zhou and Zheng Chu and Yongpeng Wu and Naofal Al-Dhahir and Pei Xiao",
note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 ; Conference date: 20-05-2018 Through 24-05-2018",
year = "2018",
month = jul,
day = "3",
doi = "10.1109/ICCW.2018.8403565",
language = "English",
series = "2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1--6",
booktitle = "2018 IEEE International Conference on Communications Workshops, ICC Workshops 2018 - Proceedings",
address = "United States",
}
