Security of 6G-Enabled Vehicle-to-Everything Communication in Emerging Federated Learning and Blockchain Technologies

Sixth-generation (6G) communication is emerging as seamless and massive connecting of almost everything. Therefore, vehicles, being extensively linked with human mobility, require a technological pace for compatibility with the 6G era. 6G will also potentially revolutionize the Vehicle-to-Everything (V2X) communication. However, this modernization will surface several security challenges in the complex heterogeneous architecture of V2X communication in 6G. Similarly, the expansion of V2X also introduces unconventional security risks and vulnerabilities. This paper aims to provide an overview of the security challenges and solutions for V2X communication in the upcoming 6G era to visualize the future of this research domain. This paper discusses the architecture and standards utilized in 6G enabled V2X communications and provisions a comprehensive analysis of V2X security in Confidentiality, Integrity, Availability, Authentication and Access Control (CIA <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> ) domains. Thereby, we analyze the impact of the emerging technological concepts of Blockchain and Federated Learning (FL) in 6G enabled V2X communication. Thereby, we suggest a Blockchain-enabled FL based generic security architecture for V2X communication in 6G networks. At the conclusive end, the review highlights key lessons learned and the future research directions in the domain of security of V2X communications in the 6G including; Privacy in 3D Fog Computing, Privacy in Augmented Reality, C. Secure Software Defined Networking (SDN), Physical Layer Security In THz Spectrum, SUMO (Simulation of Urban MObility) and Intrusion Detection using AI.

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