Title
Leveraging Muiti-cell NOMA for Cell Edge
Abstract
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
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 Yu100.34
Lei You200.34
Di Yuan316810.92