Energy-efficient non-orthogonal multiple access for wireless communication system

<p>Non-orthogonal multiple access (NOMA) has been recognized as a potential solution for enhancing the throughput of next-generation wireless communications. NOMA is option 5G networks due to its superiority in providing better spectrum efficiency (SE) compared orthogonal (OMA). From perspective green communication, energy (EE) become new performance indicator. A systematic literature review conducted investigate available efficient approach researchers have employed NOMA. We identified 19 subcategories related EE out 108 publications where 92 are from IEEE website. To help reader comprehend, summary each category explained and elaborated detail. review, it had observed that can enhance communication systems. At end this survey, future research particularly machine learning algorithms such reinforcement (RL) deep (DRL) also discussed.</p>