IEEE 802.11ac Protocol Specification

IEEE 802.11ac is protocol for wifi that have very high throughput, 802.11ac is an upgrade to IEEE 802.11 protocol, have been approved on January 7, 2014, that builds on 802.11n.
Key feature/Specification of 802.11ac :
• Minimum “very high throughput” goal of 1 Gbps
As has been an upgrade for 802.11n protocol, the new 802.11ac has many Changes compared to 802.11n include:
• wider channels (80 or 160 MHz vs. 40 MHz) in the 5 GHz band
• more spatial streams (up to 8 vs. 4)
• higher order modulation (up to 256-QAM vs. 64-QAM)
• addition of Multi-user MIMO (MU-MIMO). Wave 1: 80 MHz channels, 3 spatial streams, and 256-QAM
• data rate of up to 433.3 Mbit/s per spatial stream, 1300 Mbit/s total There are already announced plans for release of "Wave 2" devices with support for 160 MHz channels, four spatial streams, and MU-MIMO

It's the specification of IEEE 802.11ac protocol, hope you like it. any suggestion or comment please be welcome to comment below. we accept google/open account and also facebook comment. Thanks.