What is V2X communication and how does it enhance ADAS capabilities?

V2X (Vehicle-to-Everything) enables vehicles to communicate with infrastructure, other vehicles, pedestrians, and networks. Technologies: DSRC (Dedicated Short Range Communication) - established, 5.9 GHz; C-V2X (Cellular V2X) - evolving, uses cellular networks. Applications: Intersection movement assist, emergency vehicle warning, red light warning, road hazard notifications, and cooperative adaptive cruise control. V2X extends perception beyond line-of-sight, enabling awareness of occluded vehicles and advance warning of hazards. Challenges include security (preventing spoofing), privacy, infrastructure deployment, and ensuring interoperability. V2X is increasingly required for L4/L5 autonomy in complex urban environments.