Paper Info
Title
Subband Configuration Optimization for Multiplexing of Numerologies in 5G TDD New Radio
Abstract
The 5G New Radio (NR) access technology defines multiple numerologies to support a wide range of carrier frequencies, deployment scenarios, and variety of use cases. In this paper, we consider a resource allocation problem to efficiently support multiple numerologies simultaneously. We assume frequency division multiplexing (FDM) of numerologies in a time division duplex (TDD) system with a self-contained slot format. We focus on optimizing the numerology subband (SB) configuration, as well as the duplexing ratio between downlink (DL) and uplink (UL) directions within each SB. The optimization problem minimizes the weighted sum of the normalized load (NL) for each SB in each direction. We prove that our optimization problem is convex and, furthermore, we derive the optimal closed-form expressions for the numerology SB configuration and the DL-UL duplexing ratio per SB. The effectiveness of the proposed resource allocation is validated through an end-to-end ns-3 based simulator, which shows how the optimization of the NLs is translated into an improved throughput and delay performance.
Year
DOI
Venue
2018
10.1109/PIMRC.2018.8580813
2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
Keywords
Field
DocType
5G NR,FDM of numerologies,subband configuration,self-contained slot
Topology,Computer science,Frequency-division multiplexing,Real-time computing,Resource allocation,Bandwidth (signal processing),Multiplexing,Optimization problem,Orthogonal frequency-division multiplexing,Telecommunications link,Duplex (telecommunications)
Conference
ISSN
ISBN
Citations 
2166-9570
978-1-5386-6010-2
1
PageRank 
References 
Authors
0.39
4
5
Name
Order
Citations
PageRank
Sandra Lagen17811.36
Biljana Bojovic2427.33
Sanjay Goyal3995.09
Lorenza Giupponi456753.70
Josep Mangues-Bafalluy518742.84