Citation

Abuajwa, Osama and Muhammad, Surajo and Ambak, Zulkifli and Mitani, Sufian Mousa and Tiang, Jun-Jiat (2025) Energy Efficiency Techniques in Non-orthogonal Multiple Access (NOMA) in 5G Network: An Overview and Outlook. Wireless Personal Communications, 140 (3-4). pp. 971-1013. ISSN 0929-6212

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Abstract

Multiple Access (NOMA) systems, focusing on critical topics such as the integration of NOMA with cutting-edge technologies like Multi-Input Multi-Output (MIMO), beamforming, Mobile Edge Computing (MEC), and Reconfgurable Intelligent Surface (RIS), and discusses the challenges in radio resource allocation and environmental sustainability. The review aims to summarise the current state-of-the-art techniques, evaluate their performance, and identify future research directions to enhance energy efciency in NOMA systems. This paper addresses several key fndings: power allocation methods can enhance energy efciency by up to 30% in specifc scenarios; relay-assisted and hybrid NOMA schemes can boost data rates by 20–25%; and energy harvesting shows potential for improving energy efciency, reducing power consumption by up to 15% in certain cases. These challenges include system complexity, which can increase the computational overhead by 40% when optimising resource allocation, and user fairness, where trade-ofs in power allocation can reduce the data rate up to 10% for edge users in certain scenarios, ultimately afecting overall energy efciency.

Item Type:	Article
Uncontrolled Keywords:	Energy efciency (EE) · Energy consumption · Total cost of ownership (TCO) · Trade-of · HetNet · MIMO · MEC · RIS
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication. Including telegraphy, telephone, radio, radar, television
Divisions:	Faculty of Applied Communication (FAC)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	28 May 2025 01:41
Last Modified:	28 May 2025 01:41
URII:	http://shdl.mmu.edu.my/id/eprint/13857

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