802.11ac


Also found in: Dictionary, Thesaurus, Medical.

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 ?
Together, PCTEL's horizontally and vertically polarized omnidirectional antennas optimize MIMO performance and improve data throughput rates for 802.
NetScout is very excited to be releasing the AirCheck G2, which arms technicians with easy-to-understand insights to 802.
As we start transitioning equipment over to supported 802.
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.
11n Wi-Fi clients will get a boost, operating 40 percent faster on 802.
The Amped Wireless RTA15 Router is a high-power 700mW dual-band AC Wi-Fi router that provides extra range over next-generation 802.
Enabling client devices to always connect to the most available, highest-performing AP helps ensure that enterprises can benefit from the enhanced throughput and capacity that 802.
But because it can transmit and receive data faster and can get off the network when it's finished, 802.
The BCM4360 supports the PCIe interface and implements three-stream 802.
a global networking company that delivers innovative products to consumers, businesses and service providers, has announced a new line of products that provide access to next-generation high-speed 802.