V2X Service Provisioning with 5G V2N2V Communications with Cross-Stakeholder Information Sharing

The support of Cooperative Intelligent Transport Systems (C-ITS) services requires seamless interoperability between involved stakeholders. To this aim, the 5G Automotive Association has recently endorsed a Vehicle-to-Network-to-Everything (V2N2X) architecture trialed at national initiatives to support road traffic management V2X services. The architecture enables interoperability at the application level through a cloud-federated Information Sharing Domain (ISD) that supports data sharing and interoperability among stakeholders. This study analyses the possibility to support critical and latency-sensitive V2X services using 5G-based Vehicle-to-N etwork-to- Vehicle (V2N2V) communications over the federated cloud-based V2N2X architecture. The analysis considers the intersection collision avoidance (ICA) service as a case study and scenarios involving multiple Mobile Network Operators (MNOs) and Original Equipment Manufacturer (OEM) clouds. We show that the ICA requirements can be supported, provided connections with controlled latencies (under Service Level Agreements or SLAs) are established between the OEM clouds and the ISD. However, the small tolerance to latency variations can compromise the support of the critical and latency-sensitive V2X services over the federated cloud-based V2N2X architecture, and solutions are necessary to ensure the scalability of the system.