Stanislav Lange

This PhD position at the Department of Information Security and Communication Technology at the Norwegian University of Science and Technology (NTNU) focuses on how mobile networks can cooperate to keep critical services running when failures, congestion, or recovery events disrupt normal operation. The project sits in NTNU’s Beyond 5G lab and is centered on resilient service continuity across multi-operator mobile network systems. The work looks at how independently operated networks can coordinate resources and priorities while still retaining their own policies and limited visibility into each other’s internal state. A major theme is understanding the mechanisms, data paths, and open interfaces needed to support service continuity when services move between networks or when capacity is constrained. Research questions include how networks should exchange information for admission and resource allocation decisions, how service priorities can be coordinated across heterogeneous systems, and how network selection, traffic steering, and recovery mechanisms can maintain application continuity without triggering repeated switching or overload cascades. The project also considers how shared infrastructure, leased capacity, and inter-operator dependencies affect failure propagation and the resilience gained from alternative network access. The research environment combines experimental systems work with both commercial and open-source mobile network deployments, with simulation and analytical modeling available to study conditions beyond the scale of physical testbeds. The position is connected to the Networking research group and includes academic dissemination, conference activity, possible research stays abroad, and teaching in networking-related courses. The workplace will be in Trondheim, and the position is hosted by NTNU, one of Norway’s leading technical universities with a strong research environment in communications networks and networked services.