Abstract
Orthogonal frequency division multiplexing (OFDM) is widely adopted in wideband digital wireless communication systems such as digital television broadcast, wireless LAN/MAN, mobile communication, and Ultra-Wideband (UWB). Operation processing of fast Fourier transform (FFT) is mandatory for OFDM modulation/demodulation. FFT processors which can support Giga samples per second (Gsps) in data processing have been developed recently. This paper starts from the explanation of FFT algorithm and describes hardware implementation of pipeline FFT processors.
