  Virtual Reality (VR) is expected to be one of the killer-applications in 5G
networks. However, many technical bottlenecks and challenges need to be
overcome to facilitate its wide adoption. In particular, VR requirements in
terms of high-throughput, low-latency and reliable communication call for
innovative solutions and fundamental research cutting across several
disciplines. In view of this, this article discusses the challenges and
enablers for ultra-reliable and low-latency VR. Furthermore, in an interactive
VR gaming arcade case study, we show that a smart network design that leverages
the use of mmWave communication, edge computing and proactive caching can
achieve the future vision of VR over wireless.
