The first to experience the future of wireless technology, well before most humans, will be South Korea's wild boars. That's because 5G, the fifth-generation wireless network, is making its worldwide debut at the Winter Olympics in Pyeongchang.

The technology will be used to ward off the porcine pests who roam the mountainous region around the games with fast-acting systems that shoot rays, spew gases and emit tiger roars.

That's just the start of 5G — South Korea's attempt to showcase the first-in-the-world commercial use of the technology that's not scheduled to roll out globally until 2020. At the Olympics, shuttle buses run with no humans at the wheel, and 360-degree images in real time show competing figure skaters as they glide around the ice.