A Review on Efficient FFT/IFFT algorithm for OFDM systems using FPGA

Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is a multi-carrier modulation technique which
divides the available spectrum into many carriers. However, recently the attention toward OFDM has grown
dramatically in the field of wireless and wired communication systems. FFT and IFFT are the important modules for
OFDM design. This paper concentrates on finding methods for Fast Fourier Transform (FFT) and Inverse Fast Fourier
Transform (IFFT), in an efficient way. Field Programmable Gate Array (FPGA) is also emerging as a fundamental
paradigm in the implementation of these standards. This is due to their increased capabilities (speed and resources).