802.11ac


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

802.11ac

The latest IEEE Wi-Fi standard, which was designed to improve wireless services in the enterprise as well as support multiple streams of HD video in the home. Also known as "Gigabit Wi-Fi" and "5G Wi-Fi," products became available in 2012 before the standard was approved in early 2014.

Operating only in the 5 GHz band, devices are backward compatible with 802.11n, which is expected to co-exist with 802.11ac until the 2020s. An 802.11ac access point employs beamforming, which uses feedback to aim the transmission more directly to the receiving device. The second generation Wave 2 supports multiuser MIMO (MU-MIMO) with a total of eight simultaneous streams and up to four per client. See 2.5/5G Ethernet, 802.11n, 802.11ad, OFDM and QAM.

802.11ac and 802.11n SPECIFICATIONS     11ac         11nBand  5 GHz       2.4/5 GHz

 Modulation    256-QAM       64-QAM

 MaxAntennas     8             4

 Channel MHz   20, 40,      20, 40
               80, 160

 11n(40 MHz channels)1 stream                   150 Mbps
 2 streams                  300 Mbps
 3 streams                  450 Mbps
 4 streams                  600 Mbps

 11ac Wave 1(80 MHz channels)1 stream     433 Mbps
 2 streams    867 Mbps
 3 streams    1.3 Gbps

 11ac Wave 2(160 MHz channels)1 stream     867 Mbps
 4 streams    3.39 Gbps
 8 streams    6.77 Gbps
References in periodicals archive ?
Under this deployment, financial details of which were not available, the Great Torrington School replaced its legacy wireless with an 802.
For example, two 1000BASE-T connections may be required to support a single 802.
11 ac is a 'killer application' Maguire continues, "IEEE 802.
The Aruba 220 Series APs are purpose-built for 802.
Using multiple antennas and multiple wireless streams over the air, 802.
The previously announced NETGEAR R6300 WiFi Router is the industry's first 802.
Key product features of the MediaTek MT7650 include: All-In-One (MAC/Baseband/Radio) 802.
HAS was pleased with the performance, reliability and ease of management they experienced with the Aruba solutions used on their private network, so according to Lisa Kent, CTO for HAS, selecting Aruba's 802.
WORLDWIDE COMPUTER PRODUCTS NEWS-December 17, 2014-Aerohive introduces the new Aerohive AP1130 enabling extreme outdoor 802.
According to estimates from Infonetics Research, 802.
NASDAQ: ARUN) said it has announced that its indoor and outdoor enterprise 802.
In enterprise networks, the higher rates and increased capacity of 802.