Mapping 1D-FFT on an energy efficient 3D FPGA-DRAM architecture

The one-dimensional Fast Fourier Transform (1D-FFT) is a fast method of computing the Discrete Fourier Transform (DFT) that is pervasive in signal processing applications. In this paper we present details on the mapping of the 1D-FFT on a power efficient 3D FPGA-DRAM architecture [1], with four data sizes: 256pt, 1024pt, 4096pt and 32768pt to achieve 29 GFLOPs/W with a 65nm technology.