Revolutionizing Intelligent Transportation Systems with Cellular Vehicle-to-Everything (C-V2X) technology: Current trends, use cases, emerging technologies, standardization bodies, industry analytics and future directions

The emergence of Cellular Vehicle-to-Everything communication (C-V2X) has brought significant advancements in the field of Intelligent Transportation Systems. This review presents an in-depth analysis of the benefits offered by C-V2X technology, such as improved safety, enhanced traffic efficiency, and reduced environmental impact. The study offers an overview of state-of-the-art C-V2X architectures, protocols, use cases, emerging technologies, standardization bodies, and growth of the automotive industry verticals in C-V2X field. Additionally, this paper explores the visionary research on the Enhancing V2X Communication through Programmable Edge and Cloud Intelligence to enhance the traditional C-V2X architectures. It also provides insights into the opportunities and evolving infrastructure's refereed from 3GPP and ETSI standards for spectrum management, traffic management, policy handling, safety, and sustainability. Furthermore, this paper sheds light into the potential research challenges that is being raised in the C-V2X technology and also emphasizes the potential solutions that is being addressed by researchers. Additionally, this study also gives the glimpse towards the need for further research and standardization to ensure its interoperability with other technologies.