TY - GEN
T1 - Design and optimization on reconfigurable butterfly core for a real-time FFT processor
AU - Liu, Zhizhe
AU - Zhong, Shunan
AU - Chen, Yueyang
AU - Chu, Weinan
PY - 2009
Y1 - 2009
N2 - Runtime reconfigurable FFT processors on scale of data frame samples are being concerned and designed A novel solution based on the reusable butterfly core is proposed for achievement of reconfigurable FFT processors. An alternative mixed fabric in radix-4 and radix-2 is applied to the proposed butterfly core. Parallel in-place memory access rule is proposed to fulfill the range of data frame sample scale, from 1024 to 16, with the recursive architecture of the single butterfly core. Implementation of the proposed FFT processor is under the technology of SMIC 0.18μm CMOS, which gets to 3 ns on critical path and 2 mm2 of a core area by reason of the optimization solution on data paths with 4-2 compressor clusters, instead of regular adders, and on data A, which is the data without rotation in the dragonfly core, with preprocessing.
AB - Runtime reconfigurable FFT processors on scale of data frame samples are being concerned and designed A novel solution based on the reusable butterfly core is proposed for achievement of reconfigurable FFT processors. An alternative mixed fabric in radix-4 and radix-2 is applied to the proposed butterfly core. Parallel in-place memory access rule is proposed to fulfill the range of data frame sample scale, from 1024 to 16, with the recursive architecture of the single butterfly core. Implementation of the proposed FFT processor is under the technology of SMIC 0.18μm CMOS, which gets to 3 ns on critical path and 2 mm2 of a core area by reason of the optimization solution on data paths with 4-2 compressor clusters, instead of regular adders, and on data A, which is the data without rotation in the dragonfly core, with preprocessing.
KW - Radix-2
KW - Radix-4
KW - Reconfigurable butterfly core
KW - Runtime configurable FFT
UR - http://www.scopus.com/inward/record.url?scp=77949379515&partnerID=8YFLogxK
U2 - 10.1109/ASICON.2009.5351563
DO - 10.1109/ASICON.2009.5351563
M3 - Conference contribution
AN - SCOPUS:77949379515
SN - 9781424438686
T3 - ASICON 2009 - Proceedings 2009 8th IEEE International Conference on ASIC
SP - 847
EP - 850
BT - ASICON 2009 - Proceedings, 2009 8th IEEE International Conference on ASIC
T2 - 2009 8th IEEE International Conference on ASIC, ASICON 2009
Y2 - 20 October 2009 through 23 October 2009
ER -