Personal Area Network $($PAN$--$provides communication over a short distance that is intended for use with devices that are owned and operated by a single user$)$; Wireless LAN $($WLAN$--$a local area network that uses radio signals to transmit and receive data over distances of a few hundred feet$)$; Wireless MAN $($WMAN$--$a metropolitan area network that uses radio signals to transmit and receive data$)$; and Wireless WAN $($WWAN$--$a wide area network that uses radio signals to transmit and receive data