Posicionamento quase ideal de vBBU e atribuição de comprimento de onda em Cloud Fog RAN

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

Resumo


Na arquitetura Cloud fog Radio Access Network (CF-RAN), a ativação ótima e dinâmica de fog nodes e o posicionamento de unidades de banda base virtuais (virtual BaseBand Unit vBBU) são realizados por meio de propostas utilizando programação linear inteira (PLI). Porém, a PLI apresenta problemas de escalabilidade em cenários de redes maiores. Assim, nesse artigo é proposto uma solução baseada em relaxação linear para evitar problemas de escalabilidade e para prover uma solução aproximada da PLI para o posicionamento dinâmico de vBBUs na CF-RAN. Os resultados mostram que a relaxação linear reduz significativamente o tempo de execução e é capaz de prover soluções sub-ótimas muito próximas das providas pela PLI.

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Publicado
16/08/2021
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SANTOS, Matias R. P. dos; TININI, Rodrigo I.; JANUARIO, Tiago; FIGUEIREDO, Gustavo B.. Posicionamento quase ideal de vBBU e atribuição de comprimento de onda em Cloud Fog RAN. In: SIMPÓSIO BRASILEIRO DE REDES DE COMPUTADORES E SISTEMAS DISTRIBUÍDOS (SBRC), 39. , 2021, Uberlândia. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2021 . p. 448-461. ISSN 2177-9384.

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