The WiMAX physical layer is based on orthogonal frequency division multiplexing. OFDM is
the transmission scheme of choice to enable high-speed data, video, and multimedia
communications and is used by a variety of commercial broadband systems, including
DSL, Wi-Fi, Digital Video Broadcast-Handheld (DVB-H), and MediaFLO, besides WiMAX.
OFDM is an elegant and efficient scheme for high data rate transmission in a non-line-ofsight
or multipath radio environment.