DocumentCode :
418211
Title :
An energy-efficient reconfigurable angle-rotator architecture
Author :
Zhong, Guichang ; Xu, Fan ; Fu, Dengwei ; Wilson, A.N.
Author_Institution :
Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA
Volume :
3
fYear :
2004
fDate :
23-26 May 2004
Abstract :
A reconfigurable angle rotator architecture is proposed and incorporated into an energy-efficient reconfigurable FFT/IFFT processor IC as its major computation component, endowing the FFT/IFFT processor with a significant scalable power dissipation feature with varying FFT size. The reconfigurability of the angle rotator is realized by dynamically allocating computation resources, which are subrotation stages in cascade. This approach tends to minimize the size of the lookup table while maintaining computation accuracy, and tends to minimize the area and power consumption while improving the overall performance.
Keywords :
computational complexity; fast Fourier transforms; microprocessor chips; reconfigurable architectures; table lookup; IFFT processor; area minimization; computation accuracy; computation component; computation resources; energy-efficient angle-rotator; lookup table; power consumption; power dissipation; reconfigurable FFT processor; reconfigurable angle-rotator architecture; size minimization; Computer architecture; Delay; Energy consumption; Energy efficiency; Power dissipation; Power engineering computing; Read only memory; Resource management; Signal processing algorithms; Table lookup;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 2004. ISCAS '04. Proceedings of the 2004 International Symposium on
Print_ISBN :
0-7803-8251-X
Type :
conf
DOI :
10.1109/ISCAS.2004.1328833
Filename :
1328833
Link To Document :
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