Wi-Fi CERTIFIED ac

瞭解Wi-Fi®的又一次飛躍

Wi-Fi CERTIFIED™ ac是提供高達每秒十億位元的資料傳輸速率的最新一代Wi-Fi產品,能夠處理平板電腦、遊戲裝置、手機和許多其他設備上的諸如超高清4K視頻、多媒體播放和快速檔案傳輸等高要求應用。Wi-Fi CERTIFIED™ ac以 IEEE 802.11 ac 標準中定義的技術為基礎,提供更高的容量、更好的電源管理和更低的延遲,輕鬆支持當今的高要求應用,同時為未來的家庭、公共場所、以及企業網路等環境開闢新的產品和服務。

第二次功能升級再次提升Wi-Fi性能

在第二次功能升級的支援下Wi-Fi CERTIFIED ac可提供更高性能的移動體驗。最突出的表現是,多使用者MIMO(多輸入多輸出系統)可允許設備在不犧牲速度或性能的情況下同時在同一個網路上運行。速度的提高主要通過此次新功能中的160 MHz通道和空間串流等來實現。

雙頻網路加倍網路容量

Wi-Fi CERTIFIED ac是以Wi-Fi CERTIFIED n的高性能基礎為依託並在5 GHz頻段工作,這樣設備可利用增加的頻寬來實現更高的資料傳輸率。大多數Wi-Fi CERTIFIED ac產品採用雙頻,在 2.4 GHz 和 5 GHz 兩種頻段上工作,並在2.4GHz 頻段上支持 Wi-Fi CERTIFIED n。近年來雙頻產品的普及率一直呈上升趨勢,並有望隨著Wi-Fi CERTIFIED ac 的引入而繼續增加。雙頻網路可使容量加倍,因為設備可以使用較少擁擠的 5 GHz 頻段運行高性能應用,而使用 2.4 GHz 頻段來滿足基本需求。

提高用電效率

隨著物聯網時代的全面展開和超連接時代的臨近,越來越多的較小型設備相互連接並連接到互聯網。這些設備需要較長的電池壽命。Wi-Fi Alliance推出了節電功能,以使使用者在連接Wi-Fi網路和互聯網時,不用擔心功耗問題。Wi-Fi節電功能提供較長的休眠週期,減少了設備與基礎設施的通信需求。這些功能可極大地降低無數細分市場上Wi-Fi設備的功耗,包括智慧家居、智慧城市、工業和醫療保健市場。

  • Wi-Fi CERTIFIED™ ac: dual-band, interoperable, high-performance Wi-Fi®
  • Wi-Fi CERTIFIED Miracast™: Your Content - Now Showing on Screens Everywhere
Wi-Fi Alliance News See All
Product Finder
Wi-Fi CERTIFIED ac-certified products wave 2 features
Wi-Fi CERTIFIED ac-certified products
Download Additional Resources
Frequently Asked Questions
  • 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 CERTIFIED for WMM (Wi-Fi Multimedia) provides multimedia enhancements for Wi-Fi networks that improve the user experience for audio, video, and voice applications.

  • How does Wi-Fi Alliance help ensure product compatibility and a good user experience for certified products?

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