Joint Scheduling, Routing and Gateway Designation in Real-Time TSCH Networks

• Autor(a) principal: Gutiérrez Gaitán, Miguel
• Data de Publicação: 2022
• Outros Autores: Almeida, Luis, Watteyne, Thomas, D'Orey, Pedro, Santos, Pedro Miguel, Dujovne, Diego
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
• Texto Completo: http://hdl.handle.net/10400.22/20630
• topic: Centrality; Network design; Low-power wireless mesh networks; TSCH

This research proposes a co-design framework for scheduling, routing and gateway designation to improve the real-time performance of low-power wireless mesh networks. We target time-synchronized channel hopping (TSCH) networks with centralized network management and a single gateway. The end goal is to exploit existing trade-offs between the three dimensions to enhance traffic schedulability at systems' design time. The framework we propose considers a global Earliest-Deadline-First (EDF) scheduler that operates in conjunction with the minimal-overlap (MO) shortest-path routing, after a centrality-driven gateway designation is concluded. Simulation results over varying settings suggest our approach can lead to optimal or near-optimal real-time network performance, with 3~times more schedulable flows than a naive real-time configuration.