5G NR-V2X: Towards Connected and Cooperative Autonomous Driving

Abstract

5G New Radio (NR) is touted as a pivotal enablingtechnology for the genuine realization of connected and cooperativeautonomous driving. Despite numerous research efforts inrecent years, a systematic overview on the role of 5G NR in futureconnected autonomous communication networks is missing. To fillthis gap and to spark more future research, this paper introducesthe technology components of 5G NR and discusses the evolutionfrom existing cellular vehicle-to-everything (V2X) technologytowards NR-V2X. We primarily focus on the key features andfunctionalities of physical layer, Sidelink communication and itsresource allocation, architecture flexibility, security and privacymechanisms, and precise positioning techniques. Moreover, weenvisage and highlight the potential of machine learning forfurther performance enhancement in NR-V2X services. Lastly,we show how 5G NR can be configured to support advancedV2X use cases