A Survey on Non-Orthogonal Multiple Access for 5G Networks: Research Challenges and Future Trends

Abstract

Non-orthogonal multiple access (NOMA) is an essential enabling technology for the fifth generation (5G) wireless networks to meet the heterogeneous demands on low latency, high reliability, massive connectivity, improved fairness, and high throughput. The key idea behind NOMA is to serve multiple users in the same resource block, such as a time slot, subcarrier, or spreading code. The NOMA principle is a general framework, and several recently proposed 5G multiple access schemes can be viewed as special cases. This survey provides an overview of the latest NOMA research and innovations as well as their applications. Thereby, the papers published in this special issue are put into the content of the existing literature. Future research challenges regarding NOMA in 5G and beyond are also discussed.

to appear in IEEE JSAC, 2017

References in corpus (5)

• Sub-channel Assignment, Power Allocation and User Scheduling for Non-Orthogonal Multiple Access Networks
• On Optimal Power Allocation for Downlink Non-Orthogonal Multiple Access Systems
• Impact of User Pairing on 5G Non-Orthogonal Multiple Access
• Resource Management in Non-orthogonal Multiple Access Networks for 5G and Beyond
• Sub-channel and Power Allocation for Non-orthogonal Multiple Access Relay Networks with Amplify-and-Forward Protocol