FPGA Based Implementation Of Baseband OFDM Transceiver Using VHDL

Orthogonal Frequency Division Multiplexing (OFDM) is a multicarrier communication system. It is widely used because of its immunity to frequency selective fading channels. In this paper, the design and an implementation of OFDM transceiver on FPGA is presented. The system is designed using VHDL, synthesized using high level synthesis tool and targeted on Xilinx Spartan 3e device. Presented design is simulated on ISE simulator and the results are presented. Resources utilization for transmitter and receiver is given in this paper. The design utilizes the Intellectual Property (IP) cores provided by Xilinx for floating point multiplication, addition subtraction and division. DIT radix-2 butterfly approach is used to calculate IFFT and FFT. Keywords-FPGA, FFT, IFFT, DIT, ISE, VHDL.