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Evolution of V2X Communication and Integration of Blockchain for Security Enhancements

by 1,†, 2,*,†, 3,† and 1,*,†
Yonsei Institute of Convergence Technology, Yonsei University, Incheon 21983, Korea
Department of Information and Communication Engineering, Yeungnam University, Gyeongsan 38541, Korea
Department of Information and Telecommunication Engineering, Incheon National University, Incheon 22012, Korea
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Electronics 2020, 9(9), 1338;
Received: 20 July 2020 / Revised: 17 August 2020 / Accepted: 17 August 2020 / Published: 19 August 2020
(This article belongs to the Special Issue Blockchain for Vehicular Networks)
With the rapid evolution in wireless communications and autonomous vehicles, intelligent and autonomous vehicles will be launched soon. Vehicle to Everything (V2X) communications provides driving safety, traffic efficiency, and road information in real-time in vehicular networks. V2X has evolved by integrating cellular 5G and New Radio (NR) access technology in V2X communications (i.e., 5G NR V2X); it can fulfill the ever-evolving vehicular application, communication, and service demands of connected vehicles, such as ultra-low latency, ultra-high bandwidth, ultra-high reliability, and security. However, with the increasing number of intelligent and autonomous vehicles and their safety requirements, there is a backlash in deployment and management because of scalability, poor security and less flexibility. Multi-access Edge Computing (MEC) plays a significant role in bringing cloud services closer to vehicular nodes, which reduces the scalability and flexibility issues. In addition, blockchain has evolved as an effective technology enabler to solve several security, privacy, and networking issues faced by the current 5G-based MEC systems in vehicular networks. Blockchain can be integrated as a strong security mechanism for securing and managing 5G V2X along with MEC. In this survey, we discuss, in detail, state-of-the-art V2X, its evolution based on cellular 5G technology and non-cellular 802.11bd. We investigate the integration of blockchain in 5G-based MEC vehicular networks for security, privacy protection, and content caching. We present the issues and challenges in existing edge computing and 5G V2X and, then, we shed some light on future research directions in these integrated and emerging technologies. View Full-Text
Keywords: connected vehicles; security; blockchain; edge computing; privacy connected vehicles; security; blockchain; edge computing; privacy
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Shrestha, R.; Nam, S.Y.; Bajracharya, R.; Kim, S. Evolution of V2X Communication and Integration of Blockchain for Security Enhancements. Electronics 2020, 9, 1338.

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