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In this paper, a memory-based architecture of FFT processor customized for OFDM-based communication systems is presented. For the finite word length effects consideration of the decimation in time (DIT) and decimation in frequency (DIF) algorithms, DIF algorithm is selected in our design. Complex multiplication is the main design key in the FFT butterfly transform, a simplification of the complex...
In this paper, a novel architecture for two-dimensional discrete cosine transform (2-D DCT) is proposed. The 2-D DCT calculation exploits the separability property and allows row-column decomposition by using 2 successive one-dimensional (1-D) transforms, whose intermediate results are transposed with a parallel transposition memory. High operating frequency can be reached and pipeline technique is...
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