C-V2X, or Cellular Vehicle-to-Everything, is a communication technology that enables vehicles to connect with each other and their surroundings. It uses cellular networks to facilitate real-time data exchange, improving road safety and traffic efficiency. This technology allows vehicles to share information about their speed, location, and potential hazards. C-V2X operates in two modes: direct communication between vehicles (V2V) and communication with infrastructure like traffic lights and road signs (V2I). By enhancing awareness of the driving environment, C-V2X aims to reduce accidents and optimize traffic flow, contributing to smarter transportation systems.