The next generation of wireless infrastructure is known as 5G. And it could have implications for not just how fast our phones get data, but also for driverless car infrastructure, and our ability to communicate in virtual reality. How close are we to having the 5G infrastructure in place, and what are the hold ups? Marketplace Tech host Molly Wood talks with Sundeep Rangan, director of the research center NYU WIRELESS, and a professor of electrical engineering.