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Performance evaluation of SDN-controlled green mobile fronthaul using a federation of experimental network testbeds

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Abstract

When evolved NodeB flexible functional split is implemented in virtualized radio access network 5G systems, fronthaul connectivity between the virtualized network functions (VNFs) must be seamlessly guaranteed. This study proposes the utilization of software defined networking (SDN) to control the mobile fronthaul. In particular, this study investigates the ability of the SDN-based control of reconfiguring the fronthaul to maintain VNF connectivity when cell and optical access turn into sleep mode (off mode) for energy efficiency purposes. The evaluation of the proposed scheme is performed by federating two remote experimental testbeds. Results show that, upon cell and optical access turning on and off, the fronthaul reconfiguration time is limited to few tens of milliseconds.

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Acknowledgements

This work was supported in part by the Fed4FIRE project (“Federation for FIRE”), an integrated project funded by the European Commission through the 7th ICT Framework Program (318389), partly by the EU-funded Wishful Project (645274), and partly by the EU-funded 5G-Crosshaul Project (671598).

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Authors and Affiliations

  1. Scuola Superiore Sant’Anna, Pisa, Italy

    Koteswararao Kondepu, Andrea Sgambelluri, Piero Castoldi & Luca Valcarenghi

  2. CNIT, Pisa, Italy

    Filippo Cugini

  3. Universidad Carlos III de Madrid, Madrid, Spain

    Raquel Aparicio Morenilla & David Larrabeiti

  4. IMEC/Ghent University, Ghent, Belgium

    Brecht Vermeulen

Authors
  1. Koteswararao Kondepu
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  2. Andrea Sgambelluri
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  3. Filippo Cugini
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  4. Piero Castoldi
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  5. Raquel Aparicio Morenilla
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  6. David Larrabeiti
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  7. Brecht Vermeulen
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  8. Luca Valcarenghi
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Correspondence to Koteswararao Kondepu.

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Kondepu, K., Sgambelluri, A., Cugini, F. et al. Performance evaluation of SDN-controlled green mobile fronthaul using a federation of experimental network testbeds. Photon Netw Commun 37, 399–408 (2019). https://doi.org/10.1007/s11107-018-00822-y

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  • DOI: https://doi.org/10.1007/s11107-018-00822-y

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