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Fast Fouier Transform Algorithm for Low-Power and Area-Efficient Implementation
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- Authors
- Jung Yeol Oh, Myoung Seob Lim
- Issue Date
- 2006-04
- Citation
- IEICE Transactions on Communications, v.E89-B, no.4, pp.1425-1429
- ISSN
- 0916-8516
- Publisher
- 일본, 전자정보통신학회 (IEICE)
- Language
- English
- Type
- Journal Article
- Project Code
- 05MH2200, The Development of high data rate WPAN based very high-speed wireless home networking technology, Kim Jae Young
- Abstract
- This paper proposes the new radix-24 FFT algorithm and an efficient pipeline FFT architecture based on the algorithm for wideband OFDM systems. The proposed pipeline architecture has the same number of multipliers as that of the radix-22 algorithm. However, the multiplication complexity is reduced more than 30% by using the newly proposed CSD constant multipliers instead of the programmable multipliers. From the synthesis simulations of a standard 0.35//m CMOS SAMSUNG process, the proposed CSD constant complex multiplier achieved a reduction of more than 60% of the power consumption/area when compared with the conventional programmable complex multiplier. Copyright © 2006 The Institute of Electronics, Information and Communication Engineers.
- KSP Keywords
- Area-Efficient, Complex Multiplier, FFT algorithm, Information and communication, Low-Power, OFDM systems, Power Consumption, Radix-2, efficient implementation, pipeline architecture, wideband OFDM