Arcabouço de handoff definido por software e suporte à multihoming para redes veiculares heterogêneas

  • Henrique Júnior J. Pereira UFPE
  • José Jailton H. F. Júnior UFPA
  • Andson M. Balieiro UFPE
  • Tássio C. de Carvalho UFPA
  • Kelvin L. Dias UFPE

Resumo


As redes veiculares ad hoc (VANETs) possibilitam que passageiros de veículos inteligentes usufruam de aplicações multimídias, como chamadas VoIP e streaming de vídeo. Contudo, as VANETS são redes altamente dinâmicas, com veículos se movendo frequentemente entre as células de cobertura dos pontos de acesso, o que pode causar interrupções no fornecimento das aplicações. Dessa forma, procedimentos efetivos de handoff para manter a continuidade do fornecimento de conteúdo enquanto os veículos se locomovem se tornam imperativos. Este artigo apresenta um mecanismo de handoff definido por software e com suporte à multihoming para garantir o handoff transparente em um cenário veicular heterogêneo (Redes IEEE 802.11p e LTE), assegurando os níveis de QoS/QoE exigidos pela aplicação de tempo real. Os resultados de simulação mostram a eficácia do esquema proposto em comparação a técnica baseada em RSSI.

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Publicado
16/08/2021
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PEREIRA, Henrique Júnior J.; F. JÚNIOR, José Jailton H.; BALIEIRO, Andson M.; CARVALHO, Tássio C. de; DIAS, Kelvin L.. Arcabouço de handoff definido por software e suporte à multihoming para redes veiculares heterogêneas. In: WORKSHOP DE GERÊNCIA E OPERAÇÃO DE REDES E SERVIÇOS (WGRS), 26. , 2021, Uberlândia. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2021 . p. 14-27. ISSN 2595-2722.