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ThinkMind // GREEN 2019, The Fourth International Conference on Green Communications, Computing and Technologies // View article green_2019_1_20_80021


Energy-Aware Design Considerations for Ethernet-Based 5G Mobile Fronthaul Networks

Authors:
Line Larsen
Michael Berger
Henrik Christiansen

Keywords: Energy consumption; green networking; Ethernet fronthaul; C-RAN; functional split; 5G.

Abstract:
Communication networks are not only important to society, they also consume a lot of energy. Recent years research has focused on Cloud-Radio Access Network (C-RAN) to decrease the energy consumption in mobile networks. Hence, this work investigates how to lower the energy consumption in the Ethernet based fronthaul network by choosing the right C-RAN functional split. Different functional splits assign different loads to the fronthaul network, and this work considers how much impact the data load has on the fronthaul network’s energy consumption. This work presents a model for the fronthaul energy consumption, which takes the different steps of the Ethernet switch operations into account. The outcome of this model shows the extremely high importance of choosing the right functional split when mobile networks are entering the era of 5th Generation (5G). The impact of switch capacity and size of Ethernet packets is also considered. In a 5G worst case scenario, one switch will consume the same amount of energy as 199 households. The difference in energy consumption between the best and worst case scenario of this paper is 99.32% per switch.

Pages: 8 to 13

Copyright: Copyright (c) IARIA, 2019

Publication date: October 27, 2019

Published in: conference

ISSN: 2519-8483

ISBN: 978-1-61208-751-1

Location: Nice, France

Dates: from October 27, 2019 to October 31, 2019

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