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Adaptive FH optimization in MEC-assisted 5G environments

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Abstract

To address the limitations of current radio access networks (RANs), centralized RANs adopting the concept of flexible splits of the BBU functions between radio units (RUs) and the central unit have been proposed. This concept can be implemented combining both the Mobile Edge Computing model and relatively large-scale centralized Data Centers. This architecture requires high-bandwidth/low-latency optical transport networks interconnecting RUs and compute resources adopting SDN control. This paper proposes a novel mathematical model based on Evolutionary Game Theory that allows to dynamically identify the optimal split option with the objective to unilaterally minimize the infrastructure operational costs in terms of power consumption. Optimal placement of the SDN controllers is determined by a heuristic algorithm in such a way that guarantees the stability of the whole system. Finally, multi-agent learning methods were investigated in order to expand the model to more sophisticated scenarios where many RUs with limited information are interacting.

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Acknowledgements

This work has been financially supported partly by a State Scholarships Foundation (IKY) scholarship and funded by the Act "Strengthening Human Resource Efficiency through the Implementation of Doctoral Research" from the resources of the OP "Human Resources Development, Education and Lifelong Learning," 2014–2020, the EU Horizon 2020 project 5G-COMPLETE under Grant Agreement No. 871900 and the EU Horizon 2020 project 5G-PICTURE under Grant Agreement No. 762057.

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Authors and Affiliations

  1. Department of Physics, National and Kapodistrian University of Athens, Athens, Greece

    Viktoria-Maria Alevizaki & Anna Tzanakaki

  2. Department of Electrical and Electronic Engineering, University of Bristol, Bristol, UK

    Markos Anastasopoulos, Anna Tzanakaki & Dimitra Simeonidou

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  1. Viktoria-Maria Alevizaki
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  2. Markos Anastasopoulos
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  3. Anna Tzanakaki
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  4. Dimitra Simeonidou
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Correspondence to Viktoria-Maria Alevizaki.

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Alevizaki, VM., Anastasopoulos, M., Tzanakaki, A. et al. Adaptive FH optimization in MEC-assisted 5G environments. Photon Netw Commun 40, 209–220 (2020). https://doi.org/10.1007/s11107-020-00906-8

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  • DOI: https://doi.org/10.1007/s11107-020-00906-8

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