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The technique of orthogonal frequency division multiplexing (OFDM) is famous for its robustness against frequency-selective fading channel. This technique has been widely used in many wired and wireless communication systems. In general, the fast Fourier transform (FFT) and inverse FFT (IFFT) operations are used as the modulation/demodulation in the OFDM systems, and the sizes of FFT/IFFT operations...
This paper presents a modified pipeline single-path delay feedback (SDF) fast Fourier transform (FFT) architecture. The canonic signed digit (CSD) representation is used to design the function of complex multiplier, which is the main function block in the FFT processor. The processor of a 16-bit 16-point pipeline FFT is realized on the Xilinx Virtex-4 FPGAs. The achieved maximum clock frequency is...
We develop Superscalar Architecture to compute fixed point FFT (Fast Fourier Transform). Some high-speed and time sensitive real time applications demand far better and efficient implementation of FFT and call for improved novel architectures. This account for bringing in place an embedded custom hardware for instance FPGA that helps us rally things in parallel yielding better performance. We take...
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