|Publication on Service-based Resilience in Embedded IoT Networks by University of Hamburg accepted for DSN 2020
DELIA leverages the virtualized embedded nodes to deploy and manage various mixed-criticality services flexibly. Apart from the service deployment and routing challenges for an efficient network design, guaranteeing the resilience of safety-critical services should also be a prior concern already in their design stage. In this study, we introduce a service-based network model as an MILP optimization problem for the efficient deployment of a service overlay to the embedded network by meeting QoS and resilience requirements. We show the complexity and boundaries of the problem and propose several heuristics to relax the service deployment phase and increase the fault-tolerance against node and link failures as a part of resilience goals. Our results indicate that the heuristics achieve results close to the optimum for small sizes of the problem significantly faster and can maintain the service availability for 90% of given failure scenarios in larger topologies.
Ergenc, D., Rak, J. & Fischer, M. (in press). Service-based Resilience in Embedded IoT Networks. 50th IEEE Int. Conference on Dependable Systems and Networks (DSN 2020).
Second Working Meeting