IEEE 802.11 is a working group operating under the sponsorship of the IEEE Local Area Network (LAN)/Metropolitan Area Network Standards Committee (LMSC). It is responsible for writing standards focusing on wireless LANs (WLANs). A WLAN's typical transmission range is up to 100 m. Unlicensed spectrum is generally considered, including 2.4 GHz, 5 GHz, and 60 GHz, with a few exceptions, such as the lightly licensed spectrum being considered in IEEE 802.11y and the TV whitespace being considered in IEEE 802.11af. © 2016 IEEE.