OScar: An ETSI -Compliant C- ITS Stack for Field- Testing with Embedded Hardware Devices
Marco Rapelli, Francesco Raviglione, Claudio Casetti · 2024
Vehicular communication technologies (also known as Vehicle-to-Everything, V2X) have emerged as a solution to enable not only higher levels of automation, but also to improve the safety and environmental impact of road transportation systems. To this aim, the European Telecommunication Stan-dards Institute (ETSI) has defined a set of standards detailing several message types for vehicular communications, along with a full networking stack to enable vehicles to communicate between each other and with the infrastructure. However, there is currently a critical scarcity of open stack implementations for research and testing of innovative V2X solutions in the field. To tackle this issue, this paper presents OScar, an open-source, ETSI-compliant C-ITS stack for embedded hardware devices aimed at vehicular field tests. Addressing the lack of affordable, customizable software for V2X communications, OScar proposes a lightweight, self-contained, Linux-based solution, designed to run even in low-end hardware. OScar has been validated in the field thanks to a series of preliminary tests involving Cooperative Awareness Messages disseminated through IEEE 802.11p.