Wi-Fi Standards Overview

Wi-Fi Standards and Naming Conventions

• Wi-Fi Alliance Designation

  • The Wi-Fi Alliance is responsible for promoting various wireless network standards under a specific naming convention.

  • This designation aids consumers and manufacturers in recognizing the capabilities of different WLAN (Wireless Local Area Network) technologies.

• Historical Overview of Wi-Fi Naming

  • The naming system simplifies the understanding of Wi-Fi standards by using a sequential numeric designation.

  • All legacy protocols preceding this system were retroactively named to fit into the new classification framework.

• Wi-Fi Standards

  • The following classifications correspond to specific IEEE 802.11 specifications:

  • Wi-Fi 4

    • Corresponds to the IEEE standard 802.11n.

    • Introduced in 2009, Wi-Fi 4 improved network speed and performance compared to previous standards.

  • Wi-Fi 5

    • Corresponds to the IEEE standard 802.11ac.

    • Introduced in 2014, Wi-Fi 5 operates in the 5 GHz band, providing higher data rates and improved capacity.

  • Wi-Fi 6 (implied for completeness although not detailed in the transcript)

    • Corresponds to the IEEE standard 802.11ax.

    • Introduced after Wi-Fi 5, it offers enhanced performance in dense environments with technologies like OFDMA, MU-MIMO, and improved energy efficiency.

• Phases of Wi-Fi Standards

  • The mention of the two different phases of 802.11 likely refers to the evolution of Wi-Fi technology over multiple generations and improvements, encompassing advancements in speed, efficiency, and range.