Hierarchical network abstraction for HetNet coordination

Sergio Lembo, Junquan Deng, Ragnar Freij-Hollanti, Olav Tirkkonen, Tao Chen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

We consider a user-centric network-level coordination architecture for 5G heterogeneous Radio Access Networks (RANs), based on RAN softwarization and a centralized coordination framework. We describe the RAN as a set of logical RAN entities, related to cells in a Heterogeneous Network (HetNet), under the control of a central coordination entity. This description allows the creation of Network Functions (NFs) with an abstracted view of the network. We describe a centralized coordination framework, and then develop a NF for Inter-Cell Interference Coordination (ICIC) in a 5G HetNet, optimizing the radio resource usage at network-level. We construct a Network Graph to abstract the problem of resource allocation and cell offloading, with the NF seeking for an optimal solution based on this abstraction. Simulations are performed in a HetNet scenario with a Tabu Search algorithm. Results show the feasibility of performing network-level coordination through a modular NF, with an abstracted view of the network.

Original languageEnglish
Title of host publication2017 IEEE 28th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
Place of Publication978-1-5386-3529-2
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages1-7
Number of pages7
ISBN (Electronic)978-1-5386-3531-5, 978-1-5386-3530-8
DOIs
Publication statusPublished - 14 Feb 2018
MoE publication typeA4 Article in a conference publication
Event28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2017 - Montreal, Canada
Duration: 8 Oct 201713 Oct 2017

Conference

Conference28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2017
Abbreviated titlePIMRC 2017
CountryCanada
CityMontreal
Period8/10/1713/10/17

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  • Cite this

    Lembo, S., Deng, J., Freij-Hollanti, R., Tirkkonen, O., & Chen, T. (2018). Hierarchical network abstraction for HetNet coordination. In 2017 IEEE 28th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) (pp. 1-7). IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/PIMRC.2017.8292383