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Energy-Efficient Downlink for Non-Orthogonal Multiple Access with SWIPT under Constrained Throughput

Author

Listed:
  • Admoon Andrawes

    (Department of Electrical, Electronic & Systems Engineering, Faculty of Engineering and Build Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia)

  • Rosdiadee Nordin

    (Department of Electrical, Electronic & Systems Engineering, Faculty of Engineering and Build Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia)

  • Nor Fadzilah Abdullah

    (Department of Electrical, Electronic & Systems Engineering, Faculty of Engineering and Build Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia)

Abstract

Non-Orthogonal Multiple Access (NOMA) has been proposed recently as an emerging radio access technology for the Fifth Generation (5G) to achieve high spectral efficiency (SE). In addition, simultaneous wireless information and power transfer (SWIPT) has been receiving exceptional attention because of its role in increasing energy efficiency (EE). In this paper, the performance of the downlink SWIPT-NOMA system has been evaluated. In this paper, signal to interference and noise ratio (SINR) is derived for near and far users with outage probability for each user, where the near user acts as an energy harvesting (EH) node. The Genetic algorithm (GA) is used as an optimization technique for the power splitting ratio and power allocation coefficients to maximize the EE under eligible SE. The outage probability for the near and far user is taken into consideration for the optimization process. In this work, the results from the SE–EE metric show that the maximum EE reached 0.325 Mbits/J at SE of 9 bits/sec/Hz.

Suggested Citation

  • Admoon Andrawes & Rosdiadee Nordin & Nor Fadzilah Abdullah, 2019. "Energy-Efficient Downlink for Non-Orthogonal Multiple Access with SWIPT under Constrained Throughput," Energies, MDPI, vol. 13(1), pages 1-19, December.
    • Handle: RePEc:gam:jeners:v:13:y:2019:i:1:p:107-:d:301629
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    References listed on IDEAS

    as
    1. Aqeel Mahmood Jawad & Rosdiadee Nordin & Sadik Kamel Gharghan & Haider Mahmood Jawad & Mahamod Ismail, 2017. "Opportunities and Challenges for Near-Field Wireless Power Transfer: A Review," Energies, MDPI, vol. 10(7), pages 1-28, July.
    2. Mohammed H. Alsharif & Rosdiadee Nordin & Mahamod Ismail, 2017. "Intelligent cooperation management of multi-radio access technology towards the green cellular networks for the twenty-twenty information society," Telecommunication Systems: Modelling, Analysis, Design and Management, Springer, vol. 65(3), pages 497-510, July.
    3. Admoon Andrawes & Rosdiadee Nordin & Mahamod Ismail, 2019. "Wireless Energy Harvesting with Cooperative Relaying under the Best Relay Selection Scheme," Energies, MDPI, vol. 12(5), pages 1-22, March.
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