Wi-Fi has become such an amazingly successful technology because it has continuously advanced while remaining backwards compatible.
The current state-of-the-art Wi-Fi is known as Wi-Fi CERTIFIED n or 802.11n, which has become popular because it improves performance.
As 802.11n has become a standard interface on PCs, tablets and smartphones, the applications used by these devices have continued to progress. Mobile technology has encountered the next frontier – video. Whether delivering YouTube to smartphones or moving HDTV signals around the office or home, video has become a significant driver of network traffic, chiefly because it requires one or two orders of magnitude more bandwidth than other IP services.
Now the 100 Mbps or 200 Mbps rates enabled by 802.11n, breakthrough figures that put it on a par with 10/100 Mbps Ethernet just a few years ago seem barely adequate for some emerging video applications. The next step in improving performance is 802.11ac, with speeds up to 1.3 Gbps in 2013 and much higher by 2015.
The purpose of this paper is to provide a level of guidance towards the migration to 802.11ac.