Dimensionamento ótimo de fronthaul óptico com divisão flexível de funções de processamento em CF-RAN

• Matias R. P. dos Santos UFBA
• Rodrigo I. Tinini USP
• Tiago Januario UFBA
• Gustavo B. Figueiredo UFBA

DOI: https://doi.org/10.5753/sbrc.2021.16722

Abstract

The baseband processing functions centralization in a cloud pool emerged as an alternative to reduce CAPEX and OPEX for the 5G network. However, this same centralization presented challenges for the fronthaul access networks in terms of bandwidth and delay. To mitigate such problems, several alternatives proposed by academia and industry have shown to be promising, including baseband functional split and the use of hybrid architectures. In this work, we propose an optimal solution to flexibly decide the baseband functional split considering the state of the network for energy efficiency in a CF-RAN hybrid architecture. The main objective is to make the optimal choice of the split option, centralizing processing functions in the cloud as much as possible.

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