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ASME Press Select Proceedings
International Conference on Information Technology and Computer Science, 3rd (ITCS 2011)
Editor
V. E. Muhin ,
V. E. Muhin
National Technical University of Ukraine
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ISBN:
9780791859742
No. of Pages:
656
Publisher:
ASME Press
Publication date:
2011
eBook Chapter
32 A New High-Efficiency Architecture of FFT Processor for LTE-Advanced System
By
Jianhong Zheng
,
Jianhong Zheng
Key Lab. of Mobile Communications Technology,
Chongqing University of Posts and Telecommunications
, Chongqing
, P.R.China
; zhengjianhong@cqcyit.com
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Ping Yang
,
Ping Yang
Key Lab. of Mobile Communications Technology,
Chongqing University of Posts and Telecommunications
, Chongqing
, P.R.China
; s_yangping@cqcyit.com
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Zongzhi Huang
Zongzhi Huang
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Page Count:
4
-
Published:2011
Citation
Zheng, J, Yang, P, & Huang, Z. "A New High-Efficiency Architecture of FFT Processor for LTE-Advanced System." International Conference on Information Technology and Computer Science, 3rd (ITCS 2011). Ed. Muhin, VE, & Hu, WB. ASME Press, 2011.
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It is very urgent to design higher speed FFT processor due to higher requirement in LTE-Advanced system. In this paper, we propose a new parallel cascade architecture for FFT processor. The architecture, which combines advantages of parallel with that of cascade architecture, is flexible in parallel grade. To simplify accessing memories, propose a new address mapping scheme, too. With the property of in-place operation, only a RAM is used to store in-out data. The scheme is very efficient for generating SC-FDMA baseband signal in LTE-Advanced system.
Abstract
Keywords
Introduction
Radix-4 FFT Algorithm
Design of FFT Processor
Conclusion
Acknowledgments
References
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