Energy Efficiency Benefits of RAN-as-a-Service Concept for a Cloud-Based 5G Mobile Network Infrastructure
Dario Sabella,Antonio De Domenico,Efstathios Katranaras,Muhammad Imran,Marco Di Girolamo,Umer Salim,Massinissa Lalam,Konstantinos Samdanis,Andreas Maeder +8 more
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TLDR
A vision of the advantages of the RANaaS is given, its benefits in terms of energy efficiency are presented, and a consistent system-level power model is proposed as a reference for assessing innovative functionalities toward 5G systems.Abstract:
This paper focuses on energy efficiency aspects and related benefits of radio-access-network-as-a-service (RANaaS) implementation (using commodity hardware) as architectural evolution of LTE-advanced networks toward 5G infrastructure. RANaaS is a novel concept introduced recently, which enables the partial centralization of RAN functionalities depending on the actual needs as well as on network characteristics. In the view of future definition of 5G systems, this cloud-based design is an important solution in terms of efficient usage of network resources. The aim of this paper is to give a vision of the advantages of the RANaaS, to present its benefits in terms of energy efficiency and to propose a consistent system-level power model as a reference for assessing innovative functionalities toward 5G systems. The incremental benefits through the years are also discussed in perspective, by considering technological evolution of IT platforms and the increasing matching between their capabilities and the need for progressive virtualization of RAN functionalities. The description is complemented by an exemplary evaluation in terms of energy efficiency, analyzing the achievable gains associated with the RANaaS paradigm.read more
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Journal ArticleDOI
Cloud technologies for flexible 5G radio access networks
Peter Rost,Carlos J. Bernardos,Antonio De Domenico,Marco Di Girolamo,Massinissa Lalam,Andreas Maeder,Dario Sabella,Dirk Wubben +7 more
TL;DR: How cloud technologies and flexible functionality assignment in radio access networks enable network densification and centralized operation of the radio access network over heterogeneous backhaul networks is discussed.
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