Performance Study of Downlink Users in Non- Orthogonal Multiple Access (NOMA) for 5G Communications

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Mwewa Mabumba
Mwewa Mabumba Researcher/Senior Engineer/Lecturer
2
Simon Tembo
Simon Tembo
3
Lukumba Phiri
Lukumba Phiri
1 University of Zambia

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An outline of NOMA principles is provided in this article. Furthermore, this page discusses cooperative NOMA and its variations, explains power allocation in detail as a technique of resource allocation for NOMA, and gives an overview of the research challenges related to NOMA. We then, use a two-case scenario, to suggest a dynamic power allocation (DPA) plan for the downlink NOMA users, albeit it can also be expanded to many use cases. The DPA relies on channel state information (CSI) to guarantee the quality of service (QOS) for cell center customers (user c). The Outage probability (OP) as a critical performance criterion simulation data is also provided, and they demonstrate a notable performance improvement when DPA is employed compared to fixed power allocation.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

Mwewa Mabumba. 2026. \u201cPerformance Study of Downlink Users in Non- Orthogonal Multiple Access (NOMA) for 5G Communications\u201d. Global Journal of Computer Science and Technology - E: Network, Web & Security GJCST-E Volume 23 (GJCST Volume 23 Issue E1): .

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Analyzes non-orthogonal multiple access (NOMA) performance in 5G networks for improved communication technology.
Journal Specifications

Crossref Journal DOI 10.17406/gjcst

Print ISSN 0975-4350

e-ISSN 0975-4172

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GJCST-E Classification: LCC: TK5103.2
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v1.2

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August 1, 2023

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English

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An outline of NOMA principles is provided in this article. Furthermore, this page discusses cooperative NOMA and its variations, explains power allocation in detail as a technique of resource allocation for NOMA, and gives an overview of the research challenges related to NOMA. We then, use a two-case scenario, to suggest a dynamic power allocation (DPA) plan for the downlink NOMA users, albeit it can also be expanded to many use cases. The DPA relies on channel state information (CSI) to guarantee the quality of service (QOS) for cell center customers (user c). The Outage probability (OP) as a critical performance criterion simulation data is also provided, and they demonstrate a notable performance improvement when DPA is employed compared to fixed power allocation.

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Performance Study of Downlink Users in Non- Orthogonal Multiple Access (NOMA) for 5G Communications

Mwewa Mabumba
Mwewa Mabumba University of Zambia
Simon Tembo
Simon Tembo
Lukumba Phiri
Lukumba Phiri

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