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12-01-2019 | Original Paper

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

Authors: Koteswararao Kondepu, Andrea Sgambelluri, Filippo Cugini, Piero Castoldi, Raquel Aparicio Morenilla, David Larrabeiti, Brecht Vermeulen, Luca Valcarenghi

Published in: Photonic Network Communications | Issue 3/2019

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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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Title: Performance evaluation of SDN-controlled green mobile fronthaul using a federation of experimental network testbeds
Authors: Koteswararao Kondepu
Andrea Sgambelluri
Filippo Cugini
Piero Castoldi
Raquel Aparicio Morenilla
David Larrabeiti
Brecht Vermeulen
Luca Valcarenghi
Publication date: 12-01-2019
Publisher: Springer US
Published in: Photonic Network Communications / Issue 3/2019
Print ISSN: 1387-974X
Electronic ISSN: 1572-8188
DOI: https://doi.org/10.1007/s11107-018-00822-y

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