The world of enterprise Wi-Fi moves fast, but 2018 is going to see gear based on 802.11ac Wave 2 remain the state of the art – its successor, 802.11ax, is still one for the future.
Wave 2 is the latest Wi-Fi standard to be certified by the IEEE. Its main technological innovation is MU-MIMO, or multi-user multiple-input, multiple-output. In practice, this means that manufacturers can create access points that talk to multiple devices at the same instant. Earlier APs had to handle multiple streams sequentially.