Wi-Fi CERTIFIED™ ac提供高达数Gbps的数据速率,因此Wi-Fi CERTIFIED ac设备能够支持要求很高的应用,例如超高清和4K视频,多媒体传送以及平板电脑、游戏设备、手机和很多其他设备的快速文件传送。Wi-Fi CERTIFIED ac基于IEEE 802.11ac,也称为Wi-Fi 5,Wi-Fi CERTIFIED ac设备提供更大的容量、更好的电源管理和更低的延迟,可轻而易举地处理今天要求很高的应用。

Wi-Fi CERTIFIED ac通过多用户多输入多输出(多用户MIMO)、更宽的信道以及对4路空间流的支持,提供性能更高的移动体验。


Wi-Fi CERTIFIED ac以Wi-Fi CERTIFIED n为基础,运行于5GHz频段,在这个频段上,设备可利用更大的带宽实现更高的数据速率。大多数Wi-Fi CERTIFIED ac产品都是双频段的,运行于2.4GHz和5GHz。Wi-Fi CERTIFIED ac设备使用5GHz频段,而Wi-Fi CERTIFIED n产品使用2.4GHz频段。双频段网络使容量扩大了一倍,因为设备可以使用不那么拥挤的5GHz频段处理高性能应用,而用2.4GHz频段满足基本需求,例如网上冲浪、运行物联网(IoT)应用等。


随着物联网(IoT)时代的蓬勃发展和超连接时代的迫近,相互连接以及连接到互联网上的设备越来越小了。这些设备需要很长的电池寿命。Wi-Fi Alliance已经推出节电功能,以使设备能够受益于与Wi-Fi网络及互联网的本机连接,而无需担心功耗问题。Wi-Fi节电功能支持更长的休眠时间,减少了设备与基础设施过于频繁的通信需求。这些功能可显著节省无数市场中使用的Wi-Fi设备的耗电,其中包括智能家居、智慧城市、工业和医疗保健市场。

  • Wi-Fi CERTIFIED™ ac: dual-band, interoperable, high-performance Wi-Fi®
  • Wi-Fi CERTIFIED Miracast™: Your Content - Now Showing on Screens Everywhere
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Additional Resources
Frequently Asked Questions
  • How does Wi-Fi Alliance help ensure product compatibility and a good user experience for certified products?

    Compatibility and quality are achieved through testing of Wi-Fi products. Consumers should always look for the Wi-Fi CERTIFIED logo to ensure the best user experience possible.

  • What is the benefit of MU-MIMO?

    MU-MIMO is an innovative breakthrough that enables simultaneous communication to multiple devices, improving overall speed and enabling network multitasking.

  • How can I upgrade my device to use wave 2 features?

    Upgrading devices to use wave 2 features is implementation dependent. Some devices can be upgraded through software, but most will require new hardware.

  • What performance advances are enabled by Wi-Fi CERTIFIED ac?

    Wi-Fi CERTIFIED ac enables higher data rates, higher capacity and lower latency.  Products implementing the technology behind Wi-Fi CERTIFIED ac with wave 2 features are capable of multi-gigabit data rates– nearly triple that of devices implementing only wave 1 features.

  • What new applications are enabled with Wi-Fi CERTIFIED ac?

    Wi-Fi CERTIFIED ac handles today’s demanding applications and paves the way for new applications in the future.  Certified-ac devices are more robust and offer a greater user experience including:

    • Transferring an HD movie to a tablet in under 4 minutes
    • Sharing photo albums with friends in seconds
    • Streaming three HD quality videos at one time

    Wi-Fi CERTIFIED ac devices also improve wireless performance in the enterprise in the following ways:

    • Enhanced user experience for teleconference meetings
    • Delivering greater in-office networking coverage – more clients for the same number of APs per office area
    • Projecting graphics, video and audio to a large screen in a conference room or auditorium
  • Are Wi-Fi CERTIFIED ac devices dual-band?

    Wi-Fi CERTIFIED ac operates in the 5 GHz band, but devices support the 2.4 GHz band by integrating Wi-Fi CERTIFIED n.  Dual-band devices switch between the more crowded but popular 2.4 GHz frequency band, to the cleaner 5 GHz frequency band to connect more demanding applications and avoid interference from other devices.

  • Is Wi-Fi CERTIFIED ac interoperable with previous versions of Wi-Fi?

    As with all Wi-Fi CERTIFIED devices, Wi-Fi CERTIFIED ac products are tested to ensure interoperability with legacy Wi-Fi CERTIFIED products. Products must operate in the same frequency band in order to connect.

  • What is WMM?

    Wi-Fi Multimedia, represented by the acronym WMM, is related to Wi-Fi CERTIFIED WMM® programs. These optional certifications provide multimedia enhancements for Wi-Fi networks that improve the user experience for audio, video, and voice applications.