Uma abordagem Q-Learning para escalonamento dinâmico de comunicação do TSCH

  • Victor S. Cardel UFBA
  • Paulo H. L. Rettore Fraunhofer FKIE
  • Bruno P. Santos UFBA

Resumo


Uma rede mesh 6TiSCH provê conectividade IPv6 usando enlaces IEEE 802.15.4 governados pelo Time Slotted Channel Hopping (TSCH). Essencialmente, o TSCH promete baixo consumo de energia e alta confiabilidade através do escalonamento de tempo e salto de canais de comunicação, respectivamente. Entretanto, o 6TiSCH não define as políticas para construir e manter o cronograma de comunicação. Este trabalho propõe uma nova função de escalonamento de comunicação que utiliza Q-Learning, que leva em consideração a variação no tráfego da rede, o consumo de energia e o tamanho da fila de mensagens a serem enviadas pelo dispositivo. Comparamos a abordagem proposta com Minimal Scheduling Function (MSF), o escalonador de facto usada na literatura. Os experimentos mostram que a abordagem proposta reduz a latência da comunicação, enquanto mantém a confiabilidade alta, o consumo de energia e tempo de junção da rede baixos, mostrando que a abordagem é promissora.

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Publicado
20/05/2024
CARDEL, Victor S.; RETTORE, Paulo H. L.; SANTOS, Bruno P.. Uma abordagem Q-Learning para escalonamento dinâmico de comunicação do TSCH. In: SIMPÓSIO BRASILEIRO DE REDES DE COMPUTADORES E SISTEMAS DISTRIBUÍDOS (SBRC), 42. , 2024, Niterói/RJ. Anais [...]. Porto Alegre: Sociedade Brasileira de Computação, 2024 . p. 113-126. ISSN 2177-9384. DOI: https://doi.org/10.5753/sbrc.2024.1275.