• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Physical Layer Security for Two-Way Relay NOMA Systems with Energy Harvesting


Abstract

Due to the wide application of fifth generation communication, wireless sensor networks have become an indispensable part in our daily life. In this paper, we analyze physical layer security for two-way relay with energy harvesting (EH), where power splitter is considered at relay. And two kinds of combined methods, i.e., selection combining (SC) and maximum ratio combining (MRC) schemes, are employed at eavesdropper. What’s more, the closed-form expressions for security performance are derived. For comparison purposes, this security behaviors for orthogonal multiple access (OMA) networks are also investigated. To gain deeper insights, the end-to-end throughput and approximate derivations of secrecy outage probability (SOP) under the high signal-to-noise ratio (SNR) regime are studied. Practical Monte-Carlo simulative results verify the numerical analysis and indicate that: i) The secure performance of SC scheme is superior to MRC scheme because of being applied on eavesdropper; ii) The secure behaviors can be affected by various parameters like power allocation coefficients, transmission rate, etc; iii) In the low and medium SNR region, the security and channel capacity are higher for cooperative non-orthogonal multiple access (NOMA) systems in contrast with OMA systems; iv) The systematic throughput can be improved by changing the energy conversion efficiency and power splitting factor. The purpose of this study is to provide theoretical direction and design of secure communication.


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Cite this article

[IEEE Style]
H. Li, Y. Chen and B. Zou, "Physical Layer Security for Two-Way Relay NOMA Systems with Energy Harvesting," KSII Transactions on Internet and Information Systems, vol. 16, no. 6, pp. 2094-2114, 2022. DOI: 10.3837/tiis.2022.06.017.

[ACM Style]
Hui Li, Yaping Chen, and Borong Zou. 2022. Physical Layer Security for Two-Way Relay NOMA Systems with Energy Harvesting. KSII Transactions on Internet and Information Systems, 16, 6, (2022), 2094-2114. DOI: 10.3837/tiis.2022.06.017.

[BibTeX Style]
@article{tiis:25770, title="Physical Layer Security for Two-Way Relay NOMA Systems with Energy Harvesting", author="Hui Li and Yaping Chen and Borong Zou and ", journal="KSII Transactions on Internet and Information Systems", DOI={10.3837/tiis.2022.06.017}, volume={16}, number={6}, year="2022", month={June}, pages={2094-2114}}