Browse Definitions:
Definition

802.11ac (Gigabit Wi-Fi)

Contributor(s): Stan Gibilisco

802.11ac, also known as Gigabit Wi-Fi, is a proposed specification in the 802.11 family applicable to WLANs (wireless local area networks). 802.11ac represents an extension or update of the current 802.11a standard.

Networks using 802.11ac will operate in the 5-GHz (gigahertz) band using OFDM (orthogonal frequency-division multiplexing), just as 802.11a does. The enhancements supported by 802.11ac will facilitate simultaneous streaming of HD (high definition) video to multiple clients in homes and businesses, as well as faster wireless synchronization and backup of large files.

New features that will exist in 802.11ac, in addition to those carried over from 802.11a, include:

  • Channel width up to 160 MHz (megahertz).
  • Single-link throughput of 500 Mbps (megabits per second) or more.
  • Multi-station WLAN throughput of 1 Gbps (gigabit per second) or more.
  • 400-ns (nanosecond) short guard interval.
  • Low-density parity check code.
  • Space-time block coding.
  • Up to eight spatial streams.
  • Transmit beamforming.

Finalization of the 802.11ac standard is expected in late 2012, with formal approval taking place by the end of 2013.

For information about other specifications in the 802 family, see the IEEE 802 Wireless Standards Fast Reference.

This was last updated in August 2012

Continue Reading About 802.11ac (Gigabit Wi-Fi)

Join the conversation

2 comments

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

I am thinkin about getting one of the new 802.11ac routers that were just released.

So been reading some reviews and some of them mentioned that these early released products are not WiFi certified 802.11ac products, since the certification won’t start until early next year.

My understanding is that if they are not 802.11ac Certified then it could cause problems with devices that are released after the 11ac certification is started, so I am thinking of waiting, or getting a 11n router.

Should I only buy a 802.11ac router that has WiFi Certification?

I read this will be in March or april next year, is that right?
Cancel
Do the letters "àc" have specific meaning?
Cancel

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • cyborg anthropologist

    A cyborg anthropologist is an individual who studies the interaction between humans and technology, observing how technology can ...

  • RegTech

    RegTech, or regulatory technology, is a term used to describe technology that is used to help streamline the process of ...

  • conduct risk

    Conduct risk is the prospect of financial loss to an organization that is caused by the actions of an organization's ...

SearchSecurity

  • application whitelisting

    Application whitelisting is the practice of identifying applications that have been deemed safe for execution and restricting all...

  • security

    Security, in information technology (IT), is the defense of digital information and IT assets against internal and external, ...

  • insider threat

    An insider threat is a malicious hacker (also called a cracker or a black hat) who is an employee or officer of a business, ...

SearchHealthIT

  • HIPAA Privacy Rule

    The Standards for Privacy of Individually Identifiable Health Information, commonly known as the HIPAA Privacy Rule, establishes ...

  • HIPAA business associate agreement (BAA)

    Under the U.S. Health Insurance Portability and Accountability Act of 1996, a HIPAA business associate agreement (BAA) is a ...

  • telemedicine

    Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the ...

SearchDisasterRecovery

  • data recovery

    Data recovery restores data that has been lost, accidentally deleted, corrupted or made inaccessible. Learn how data recovery ...

  • disaster recovery plan (DRP)

    A company's disaster recovery policy is enhanced with a documented DR plan that formulates strategies, and outlines preparation ...

  • fault-tolerant

    Systems with integrated fault tolerance are designed to withstand multiple hardware failures to ensure continuous availability.

SearchStorage

  • data deduplication

    Deduplication retains one unique data instance to reduce storage and bandwidth consumed by remote backups, replication and ...

  • byte

    In most computer systems, a byte is a unit of data that is eight binary digits long. Bytes are often used to represent a ...

  • Secure Digital card (SD card)

    SD cards use flash memory to provide nonvolatile storage. They are more rugged than traditional storage media and are used in ...

SearchSolidStateStorage

  • flash file system

    Flash file systems are designed specifically for memory devices. A well-designed flash device and flash file system ensure ...

  • IOPS (input/output operations per second)

    IOPS measures the maximum number of reads and writes to non-contiguous storage. It is not an actual benchmark since vendor ...

  • eMMC (embedded MultiMediaCard)

    An embedded MultiMediaCard (eMMC) is a small storage device made up of NAND flash memory and a simple storage controller.

SearchCloudStorage

  • RESTful API

    A RESTful application program interface breaks down a transaction to create a series of small modules, each of which addresses an...

  • cloud storage infrastructure

    Cloud storage infrastructure is the hardware and software framework that supports the computing requirements of a private or ...

  • Zadara VPSA and ZIOS

    Zadara Storage provides block, file or object storage with varying levels of compute and capacity through its ZIOS and VPSA ...

Close