A Comparison of the V2X Communication Systems: ITS-G5 and C-V2X

Valérian Mannoni (1) , Vincent Berg (1) , Stefania Sesia (2) , Eric Perraud (2)

1 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information
2 Renault Software Lab

Vehicle to vehicle/infrastructure communication systems have a significant role to play in optimizing road traffic and improving road safety. In this context, two standards have emerged, namely ITS-G5 (IEEE 802.11p) and C-V2X (3GPP Release 14). The objective of this article is to compare both standards by evaluating the performance of both physical layers and associated MAC layers. The physical layer performance of a single link is first evaluated and used to derive performance in a loaded network where each user is scheduled by their respective MAC layer. Performance evaluation shows an advantage for the C-V2X for low levels of vehicles density while when the congestion increases the performance gap reduces until ITS-G5 eventually outperforms C-V2X. Finally, latency was also assessed for both communication systems.

Keywords: V2X communication; ITS-G5; C-V2X; Physical Layer; MAC layer; CSMA/CA; Sensing-Based Semi-Persistent Scheduling; Performance Evaluation

Domains: Networking and Internet Architecture [cs.NI]; Signal and Image processing

Valérian Mannoni, Vincent Berg, Stefania Sesia, Eric Perraud. A Comparison of the V2X Communication Systems: ITS-G5 and C-V2X. IEEE Vehicular Technology Conference (VTC) Spring 2019, Apr 2019, Kuala-Lumpur, Malaysia. ⟨cea-02183828⟩