Alocação Eficiente de vBBUs e VPONs em uma Arquitetura Cloud-Fog RAN Virtualizada sobre TWDM-PON

  • Rodrigo Izidoro Tinini USP
  • Matias R. P. dos Santos UFBA
  • Carlos Kamienski UFABC
  • Gustavo Bittencourt Figueiredo UFBA
  • Daniel Macêdo Batista USP

Resumo


Para diminuir a latência e o consumo de energia em redes 5G, operadores têm adotado a arquitetura Cloud Radio Access Networks (CRAN) com um fronthaul TWDM-PON. Apesar de reduzir o consumo de energia, a carga de dados no fronthaul da CRAN é alta, podendo aumentar as latências e diminuir a cobertura da rede. Assim, neste artigo, consideramos a arquitetura Cloud-Fog RAN (CF-RAN), que usa fog nodes para diminuir a carga do fronthaul. Para esta arquitetura, nós propomos uma heurística baseada em grafos que dinamicamente ativa fog nodes e dimensiona a banda do fronthaul. A proposta provê soluções ótimas de um ILP, é capaz de mitigar a probabilidade de bloqueio e reduz o consumo de energia em até 58% em comparação com heurísticas base.

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Publicado
16/08/2021
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TININI, Rodrigo Izidoro; SANTOS, Matias R. P. dos; KAMIENSKI, Carlos; FIGUEIREDO, Gustavo Bittencourt; BATISTA, Daniel Macêdo. Alocação Eficiente de vBBUs e VPONs em uma Arquitetura Cloud-Fog RAN Virtualizada sobre TWDM-PON. In: SIMPÓSIO BRASILEIRO DE REDES DE COMPUTADORES E SISTEMAS DISTRIBUÍDOS (SBRC), 39. , 2021, Uberlândia. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2021 . p. 43-56. ISSN 2177-9384.

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