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The interest for communications between vehicles and the infrastructure or other vehicles (V2X) has recently increased towards connected vehicle applications, and particularly cooperative collision avoidance (CoCA). In this paper, we evaluate the performance of LTE-V2X networks in the context of Intelligent Transportation Systems for traffic collision avoidance applications based on sharing occupancy maps between the infrastructure and the vehicles. We compare by simulation different LTE-V2X configurations under realistic conditions in an intersection scenario. Then, we evaluate every type of communication link (V2I and V2V) as a function of the density of vehicles. The results show the potential of the concept for V2X and the trade-offs in terms of reliability, capacity and latency.

By means of system-level simulations, we analyze in this paper the performance of Vehicle-to-Network (V2N) connectivity based on the 5th Generation -New Radio (5G-NR) as a support to Cooperative, Connected and Automated Mobility (CCAM), in light of both network and Multi-access Edge Computing (MEC) deployments. Focusing on a canonical centralized Cooperative Lane Change (CLC) use case that involves three vehicles in a cross-border highway environment, we assess the link reliability and the End-to-End (E2E) latency of all the messages involved in the CLC negotiation phase (from/to interconnected MECs hosting the centralized maneuvering application), while assuming different deployment configurations and the coexistence with a second demanding vehicular service running over the same radio resources. On this occasion, we illustrate possible benefits from Bandwidth Partitioning (BWP) on Uplink (UL) latency, as well as from an hypothetically tight cooperation between Mobile Network Operators (MNOs) on reliability and continuity, leveraging low-latency inter-MEC transactions and seamless cross-border handover capabilities.

In this paper, we present a techno-economic analysis of a Cooperative, Connected and Automated Mobility (CCAM) use case in a specific cross-border environment, namely Cooperative Lane Merging (CLM). The latter is assumed to rely on Vehicle-to-Infrastructure (V2I) connectivity with respect to a set of inter-connected Road Side Units (RSUs). In order to feed the techno-economic framework with the required data in terms of road infrastructure, extensive system-level simulations have been performed using a connectivity oriented key performance indicator (KPI), while considering three different deployment scenarios and realistic road traffic densities. The proposed model identifies the minimum additional RSUs required to satisfy the CLM KPI with respect to the number of simultaneous connected cars. First results show the beneficial impact from densifying the road network infrastructure on the CLM service availability, especially under the highest road traffic conditions. In terms of Total Cost of Ownership (TCO), cost results of a set of scenarios considering the variation of both the number of connected cars and the RSUs to be deployed are discussed as well.