1. 48-Mode Reconfigurable Design of SDF FFT Hardware Architecture Using Radix-32 and Radix-23 Design Approaches.
- Author
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Shih, Xin-Yu, Liu, Yue-Qu, and Chou, Hong-Ru
- Subjects
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FAST Fourier transforms , *COMPLEMENTARY metal oxide semiconductors , *ELECTRONIC feedback - Abstract
In this paper, we propose a reconfigurable (RC) fast Fourier transform (FFT) design in a systematic design scheme. The RC design bricks are mainly proposed to arbitrarily concatenate to support FFT-point required. Meanwhile, we show three developed design techniques, including six-type RC processing element, systematic first-in first-out reuse arrangement, and section-based twiddle factor generator to elaborate our FFT design. In a design/implementation example, it can support up to 2187 FFT-point manipulation and 48 RC modes. It also supports 32 operating modes defined in 3GPP-LTE standard. In application-specified integrated circuit implementation with TSMC 90-nm CMOS technology, our design work occupies a core area of 1.664 mm2 and consumes 35.2 mW under maximal clock frequency of 188.67 MHz. This paper also has outstanding design performance in terms of speed-area ratio and power-frequency ratio for comparison reference. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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