Capacity, Spectral and Energy Efficiency of OMA and NOMA Systems

Background: As the demand for wireless communications grows, optimizing various access strategies becomes more important. This article compares Orthogonal Multiple Access (OMA) and Non-Orthogonal Multiple Access (NOMA) wireless communication methods.Objective: The primary aim is to understand and as...

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Hauptverfasser: Salih, Mohammed Mubarak, Khaleel, Basma Mohammed, Qasim, Nameer Hashim, Ahmed, Wasan Saad, Kondakova, Svitlana, Abdullah, Mohammed Yaseen
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container_start_page 652
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creator Salih, Mohammed Mubarak
Khaleel, Basma Mohammed
Qasim, Nameer Hashim
Ahmed, Wasan Saad
Kondakova, Svitlana
Abdullah, Mohammed Yaseen
description Background: As the demand for wireless communications grows, optimizing various access strategies becomes more important. This article compares Orthogonal Multiple Access (OMA) and Non-Orthogonal Multiple Access (NOMA) wireless communication methods.Objective: The primary aim is to understand and assess the capacity, spectrum efficiency, and energy efficiency of both OMA and NOMA systems using real data from thorough simulations and analysis.Methods: The study employs simulation data and practical analyses to assess multiple access approaches and their underlying technologies. It focuses on the two systems' performance metrics in real-world circumstances.Results: The results show that NOMA systems outperform OMA systems regarding capacity and spectrum efficiency. NOMA supports more users within the same bandwidth and has greater system throughput. Furthermore, the energy efficiency study shows that NOMA outperforms OMA, implying a more energy-efficient system with improved overall network performance.Conclusion: The findings provide light on the performance dynamics of OMA and NOMA systems. These discoveries are critical for designing, optimizing, and developing improved wireless communication networks capable of meeting the needs of current wireless applications.
doi_str_mv 10.23919/FRUCT61870.2024.10516394
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subjects Fading channels
NOMA
OFDM
Power demand
Probability
Spectral efficiency
Wireless communication
title Capacity, Spectral and Energy Efficiency of OMA and NOMA Systems
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