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Examination of a non-orthogonal multiple access scheme for next generation wireless networks

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  • Ravi Shankar

Abstract

Non-orthogonal multiple access (NOMA) is an important technique that enables fifth-generation (5G) wireless systems to satisfy the heterogeneous requirements of enhanced fairness, huge connectivity, high performance, low latency, and high reliability. In this work, the NOMA technique for 5G wireless communication is investigated, and considering user fairness limitations, the channel capacity has been optimized. Also, bandwidth efficiency (BE) is examined and the relationship between BE and energy efficiency (EE) is derived. Simulation results show that without wasting power the near user gets preference in power allocation when the target rate is greater than 6.4 bps/Hz. Also, when the target rate R * > 6.4 bps/Hz, the outage performance of the near user will improve and the performance of the far user will remain the same. Also, it is demonstrated that cooperative NOMA outperforms all other techniques. Simulation outcomes confirm that NOMA performs better than conventional multiple access techniques in terms of EE and BE.

Suggested Citation

  • Ravi Shankar, 2022. "Examination of a non-orthogonal multiple access scheme for next generation wireless networks," The Journal of Defense Modeling and Simulation, , vol. 19(3), pages 453-465, July.
    • Handle: RePEc:sae:joudef:v:19:y:2022:i:3:p:453-465
    DOI: 10.1177/1548512920951277
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