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VLSI Implementation of Alternate DIT-FFT Algorithm for OFDM Applications
Abstract—This project directs on the development of architecture for the Fast Fourier Transform (FFT), based on Decimation-in-Time (DIT) domain, radix-2 algorithm. The noteworthiness of this project lies in the way that both the time domain and frequency domain values are in natural order. No bit reverse ling is involved. The proposed architecture is implemented in VHDL and its functionality is verified. Further, the architecture is processed using Xilinx System Generator for real time processing applications.
Index Terms—Decimation in Time(DIT), Fast Fourier Transform(FFT), Orthogonal Frequency Division Multiplexing(OFDM), Bit Reversal, Xilinx, Radix-2, Transform.
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International Journal for Trends in Technology & Engineering © 2015 IJTET JOURNAL