802.11ac In-Depth

Wi-Fi has become such an amazingly successful technology
because it has continuously advanced while remaining
backwards compatible. Every few years since the 802.11b
amendment was ratified, the industry has released successive
amendments increasing Wi-Fi data rates and capabilities, but
even the latest Wi-Fi systems are able to interoperate with
1999 equipment built to the original standard. This paper
explains the latest advance in Wi-Fi, 802.11ac, which provides
the next step forward in performance.