Abstract | ||
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Non-orthogonal multiple access (NOMA) is a promising technique for performance enhancement in cellular networks. This paper investigates how much NOMA can offer for cell edge in multi-cell scenarios. We consider the joint optimization problem of time-frequency resource allocation, user pairing, and power split, for scaling up the demand delivered for edge users. Our approach for problem solving consists in iteratively applying a fixed-point method to the cells, and, for each cell, deriving an algorithm guaranteeing optimum for single-cell optimization. By embedding the fixed-point method into bi-section search, we are able to show the overall approach guarantees global optimality. Numerical results demonstrate that multi-cell NOMA optimization has much more to offer over orthogonal multiple access for the experience of edge users, in particular for high-demand and resource-limited scenarios. |
Year | DOI | Venue |
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2020 | 10.1109/ANTS50601.2020.9342843 | 2020 IEEE International Conference on Advanced Networks and Telecommunications Systems (ANTS) |
Keywords | DocType | ISSN |
NOMA,multi-cell,cell edge,resource allocation | Conference | 2153-1676 |
ISBN | Citations | PageRank |
978-1-7281-9291-8 | 0 | 0.34 |
References | Authors | |
0 | 3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Zhanwei Yu | 1 | 0 | 0.34 |
Lei You | 2 | 0 | 0.34 |
Di Yuan | 3 | 168 | 10.92 |