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The nuts and bolts of WiMAX (Part 3)

Posted: 13 Aug 2007     Print Version  Bookmark and Share

Keywords:WiMAX  physical layer  OFDM  orthogonal frequency division multiplexing 

This article gives an overview of the WiMAX physical layer, including OFDM basics through slot and frame structure and adaptive modulation and coding in WiMAX.

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-of-sight or multipath radio environment.

View the PDF document for more information.





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