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Performance Analysis and Beamforming Design of a Secure Cooperative MISO-NOMA Network.

Ghous, M, Abbas, ZH, Hassan, AK, Abbas, G, Baker, T and Al-Jumeily, D (2021) Performance Analysis and Beamforming Design of a Secure Cooperative MISO-NOMA Network. Sensors, 21 (12). ISSN 1424-8220

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Abstract

This paper studies the cell-edge user's performance of a secure multiple-input single-output non-orthogonal multiple-access (MISO-NOMA) system under the Rayleigh fading channel in the presence of an eavesdropper. We suppose a worst-case scenario that an eavesdropper has ideal user detection ability. In particular, we suggest an optimization-based beamforming scheme with MISO-NOMA to improve the security and outage probability of a cell-edge user while maintaining the quality of service of the near-user and degrading the performance of the eavesdropper. To this end, power allocation coefficients are adjusted with the help of target data rates of both the users by utilizing a simultaneous wireless information and power transfer with time switching/power splitting protocol, where the near-user is used to forward the information to cell-edge user. The analytical results demonstrate that our beamformer analysis can achieve reduced outage probability of cell-edge user in the presence of the eavesdropper. Moreover, the provided simulation results validate our theoretical analysis and show that our approach improves the overall performance of a two-user cooperative MISO-NOMA system.

Item Type: Article
Uncontrolled Keywords: 0301 Analytical Chemistry, 0805 Distributed Computing, 0906 Electrical and Electronic Engineering, 0502 Environmental Science and Management, 0602 Ecology
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QA Mathematics > QA76 Computer software
Divisions: Computer Science & Mathematics
Publisher: MDPI
Related URLs:
Date Deposited: 15 Jul 2021 14:56
Last Modified: 15 Jul 2021 15:00
DOI or Identification number: 10.3390/s21124180
URI: https://researchonline.ljmu.ac.uk/id/eprint/15296

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