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

    1 Citation (Scopus)

    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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