Cars Will Talk to One Another. Exactly How Is Less Certain.

Some automakers, as well as wireless carriers and chip makers, think that cellular systems will be better suited to handling vehicle-to-vehicle communications in the future. And, they say, cellular networks can handle connections to devices like smart traffic lights, tolls and other parts of the transportation infrastructure — so-called vehicle-to-everything or V2X communications. Most of these companies have their eyes on future 5G networks, which promise more capacity and broadband connections 10 times faster than is available today.