Title

A Flexibility Metric and Optimization Methods for Mixed Numerologies in 5G and Beyond

Document Type

Article

Publication Date

1-2018

Digital Object Identifier (DOI)

https://doi.org/10.1109/ACCESS.2018.2795752

Abstract

Mixed numerology-based frame structures will be a part of 5G systems in order to enhance overall flexibility and user satisfaction. However, inter-numerology interference, spectral efficiency reduction, complexity, and signaling overhead type of issues arise in such structures. It is needed to limit the number of numerologies used together. In this paper, a novel heuristic method is developed to find the efficient number of mixed numerologies. The proposed method aims to control overheads in systems using multi-numerology structures. Analysis of the trade-offs and relationships between different services and user requirements are also presented. The designed algorithm employs a new flexibility function and performance metric. Simulation results are shown for three different numerology sets, which include 5G numerologies.

Was this content written or created while at USF?

No

Citation / Publisher Attribution

IEEE Access, v. 6, p. 3755-3764

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