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VLSI implementation of fast Fourier transformation for OFDM-based high-speed wireless applications

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8 Author(s)
Min Jiang ; Sch. of Comput. Sci. & Electr. Eng., Peking Univ., Beijing, China ; Bing Yang ; Yiling Fu ; Anping Jiang
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In this paper, we introduce a fixed-point 16-bit 64 point FFT processor architecture for OFDM-based wireless applications. The processor is based on the DIT (decimation-in-time) radix-2 butterfly FFT algorithm. A canonical signed digit is used to implement constant complex multiplications with a CSA tree for lower power and cost. The simulation shows the module can reach low cost/power and high speed for OFDM-based high-speed wireless applications.

Published in:

Solid-State and Integrated Circuits Technology, 2004. Proceedings. 7th International Conference on  (Volume:3 )

Date of Conference:

18-21 Oct. 2004