Leveraging Relay Nodes to Deploy and Update Services in a CPS with Sleeping Nodes

• Main Authors: Omond, Antoine, Coullon, Hélène, Raïs, Issam, Anshus, Otto
• Other Authors: Département Automatique, Productique et Informatique (IMT Atlantique - DAPI), IMT Atlantique (IMT Atlantique), Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT), Software Stack for Massively Geo-Distributed Infrastructures (STACK), Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Laboratoire des Sciences du Numérique de Nantes (LS2N), Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT)-NANTES UNIVERSITÉ - École Centrale de Nantes (Nantes Univ - ECN), Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes université - UFR des Sciences et des Techniques (Nantes univ - UFR ST), Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Nantes Université (Nantes Univ), University of Tromsø (UiT)
• Format: Conference Object
• Language: English
• Published: HAL CCSD 2023
• Subjects: CPS; Deployment; Update; Coordination; [INFO.INFO-DC]Computer Science [cs]/Distributed; Parallel; and Cluster Computing [cs.DC]; Arctic; Tundra
• Online Access: https://hal.science/hal-04372320; https://hal.science/hal-04372320/document; https://hal.science/hal-04372320/file/omond_cpscom_2023.pdf

International audience Cyber-physical systems (CPS) deployed in scarce resource environments like the Arctic Tundra face extreme conditions. Nodes in such environments are forced to rely on batteries and sleep most of the time to maximize their lifetime. While being autonomous, nodes have to collaborate to make scientific observations. As a result, their deployments and updates are subject to coordination (e.g., prevent interruption of a service used by other nodes). In this paper, we study analytically and experimentally, to what extent using relay nodes for communications reduces the deployment and update durations, and which factors influence this reduction. Intuitively, as dealing with sleeping nodes with low chances of uptime overlaps (no uptime synchronization), a coordinated deployment or update takes very long to finish if nodes have to communicate directly.