The wireless broadband network has the characteristics of wide coverage, low construction cost, and convenient deployment. It is one of the means of wireless IP communication access. Wireless broadband network provides high-speed and cheap access, which can save the cost of corresponding optical fiber, cable and other wired facilities. Especially in places with dense communication nodes, it can provide high-speed wireless communication services and will play an important role in the Internet of Things.

      Wireless broadband networks can be divided into Wireless Metropolitan Area Networks (WMAN), Wireless Local Area Networks (WLAN) and Wireless Personal Area Networks (WPAN) according to transmission distance.