DONUTS deliverable D1.1 - Use cases: applications and requirements
Résumé
The DONUTS project aims to deliver seamless, resilient communication services across the integrated space-air-ground networking continuum. Future digital services will increasingly rely on heterogeneous network infrastructures combining terrestrial, aerial, and satellite components to provide ubiquitous coverage, service continuity, and robustness against dynamic and disruptive conditions. In this context, a clear identification of relevant application scenarios and their associated requirements is essential to steer the project's architectural and technological development. This deliverable establishes the reference use cases and derives the corresponding functional and performance requirements that guide DONUTS research and innovation activities. After introducing the overall project vision and key challenges, three representative use cases are defined. The first addresses seamless connectivity in large-scale mobile events, where dense user populations and highly dynamic topologies require adaptive resource management and mobility-aware orchestration. The second focuses on ubiquitous logistics connectivity across multimodal transportation chains, emphasizing reliable end-to-end communication and minimized latency to support real-time tracking, coordination, and control of moving assets. The third considers direct-to-device emergency connectivity, highlighting resilience and rapid service provisioning when terrestrial infrastructure is damaged or unavailable. Building upon these scenarios, the deliverable outlines preliminary requirements and aligns the planned project tasks with the identified use cases. It lays the foundation for subsequent work packages on the design of the multi-layer space-air-ground architecture, the definition of control and management mechanisms, the development of the network digital twin, and the elaboration of evaluation scenarios.
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