Design and Implementation of DSP—Based IEEE802.16a OFDM System

A set of integrated Orthogonal Frequency Division Multiplexing（OFDM） modu lation and demodulation system is proposed and its performance is verified in reference to the standard of IEEE802.16a for WMAN.The design,combined with analogy front-end,adopts Texas Instrument（TI） Company＇s 6701 evaluation module（EVM） to construct digital Intermediate Frequency（IF） platform.A DSP-based baseband processing software module is embedded into the system.The proposed scheme makes it possible for users to select various software modules to set up connections with different throughput performance.Taking into account the given hardware configuration,the design aims to optimize the algorithm modules to accomplish better system performance.