Energy Efficiency of Open Radio Access Network: A Survey

Abubakar, A. I. , Onireti, O. , Sambo, Y. , Zhang, L. , Ragesh, G.K. and Imran, M. A. (2023) Energy Efficiency of Open Radio Access Network: A Survey. In: 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring), Florence, Italy, 20-23 Jun 2023, ISBN 9798350311143 (doi: 10.1109/VTC2023-Spring57618.2023.10200477)

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Abstract

The Open Radio Access Network (O-RAN) architecture has been identified as a promising technology for enhanced network deployment, innovation, improved competition, and reduction of capital and operating expenses (CAPEX/OPEX) of 5G and beyond networks because of its open interfaces, disaggregated network entities and functions, virtualization of network hardware and software, and intelligent control. However, the effect of this improved technology on the energy consumption of the RAN needs to be carefully investigated, so that the many advantages that can be obtained from the O-RAN are not overwhelmed by increased energy consumption. Hence, in this paper, we investigate the O-RAN from an Energy efficiency (EE) perspective by reviewing the state-of-the-art power consumption models, and EE techniques that have been proposed to minimize the energy consumption of O-RAN. In addition, the challenges associated with the optimization of the EE of O-RAN and opportunities for further research are highlighted.

Item Type:Conference Proceedings
Additional Information:The authors wish to acknowledge receipt of the funding we received for this research under the EPSRC UK-India Future Networks Initiative (Grant ref- EP/W016524/1) led by the University of East Anglia in UK.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Sambo, Dr Yusuf and Zhang, Professor Lei and Abubakar, Mr Attai and Imran, Professor Muhammad and Onireti, Oluwakayode
Authors: Abubakar, A. I., Onireti, O., Sambo, Y., Zhang, L., Ragesh, G.K., and Imran, M. A.
College/School:College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
ISSN:2577-2465
ISBN:9798350311143
Copyright Holders:Copyright © 2023 IEEE
First Published:First published in 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring)
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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