A Review of Power Domain Non-Orthogonal Multiple Access in 5G Networks

  • Aiman Kassir Ubiquitous Broadband Access Networks (U-BAN) Research Group, Razak Faculty of Technology and Informatics Universiti Teknologi Malaysia,
  • Rudzidatul Akmam Dziyauddin Ubiquitous Broadband Access Networks (U-BAN) Research Group, Razak Faculty of Technology and Informatics Universiti Teknologi Malaysia
  • Hazilah Mad Kaidi Ubiquitous Broadband Access Networks (U-BAN) Research Group Razak Faculty of Technology and Informatics Universiti Teknologi Malaysia,
  • Mohd Azri Mohd Izhar Ubiquitous Broadband Access Networks (U-BAN) Research Group Razak Faculty of Technology and Informatics Universiti Teknologi Malaysia
Keywords: Power domain, NOMA, 5G, successive interference cancellation, user pairing

Abstract

This paper highlights the fundamentals of the strong candidate Power Domain Non-Orthogonal Multiple Access (PD-NOMA) technique, and how it can best fit the requirements of fifth Generation (5G) in practical applications. PD-NOMA ensures flexibility in radio resource to improve user’s access performance. Multiple users share the same radio resources in PD-NOMA, and therefore better spectrum efficiency can be achieved. The practical system design aspects of PD-NOMA are considered in this paper by exploring different network scenarios. Optimal performances of PD-NOMA system can be obtained by suitable power allocation schemes, with reduce the computational complexity, and advanced user pairing strategy. Theoretical formulation and solutions are also explained prior to the concept of downlink PD-NOMA. Challenges and future research windows are discussed before conclusion of this paper.

Published
2018-11-26
How to Cite
Kassir, A., Dziyauddin, R. A., Mad Kaidi, H., & Mohd Izhar, M. A. (2018). A Review of Power Domain Non-Orthogonal Multiple Access in 5G Networks. International Journal of Integrated Engineering, 10(7). Retrieved from https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/3497