A Pipelined Implementation of OFDM for

The Orthogonal Frequency Division Multiplexing (OFDM) is a parallel transmission scheme. It has attained the high data rate by splitting the data stream into a number of low- rate sub-carriers (SC) instead of utilizing one carrier at a high rate. OFDM have been around 1960s.This technique is mainly used in digital audio/video broadcast (DAB/DVB), wireless LAN (802.11a and HiperLAN2) and broadband wireless (802.16). In this design, the pipelined implementation of OFDM model is designed and its used in Wireless LAN IEEE 802.11a. The aim of this work is to implement the digital baseband part of the physical layer of an OFDM transmitter that conforms to the IEEE 802.11a standard. In this work, the VHDL is used to implement the OFDM transmitter according to the IEEE 802.11a WLAN standard. This implementation will be done in Field Programmable Gate Arrays (FPGA) due to their speed and capabilities. Simulator tool (MODELSIM) is used to verify the design functionality and the designed module is synthesized the OFDM Module into Xilinx Spartan - 3E (XC3S500E).