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A 512-point 8-paral...
A 512-point 8-parallel pipelined feedforward FFT for WPAN
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- Ahmed, Tanvir (author)
- Linköpings universitet,Institutionen för systemteknik,Tekniska fakulteten
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- Garrido, Mario, 1981- (author)
- Linköpings universitet,Elektroniksystem,Tekniska högskolan
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- Gustafsson, Oscar (author)
- Linköpings universitet,Elektroniksystem,Tekniska högskolan
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(creator_code:org_t)
- IEEE, 2011
- 2011
- English.
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In: 2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR). - : IEEE. ; , s. 981-984
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Abstract
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- This paper presents a 512-point feedforward FFT architecture for wireless personal area network (WPAN). The architecture processes a continuous flow of 8 samples in parallel, leading to a throughput of 2.64 GSamples/s. The FFT is computed in three stages that use radix-8 butterflies. This radix reduces significantly the number of rotators with respect to previous approaches based on radix-2. Besides, the proposed architecture uses the minimum memory that is required for a 512-point 8-parallel FFT. Experimental results show that besides its high throughput, the design is efficient in area and power consumption, improving the results of previous approaches. Specifically, for a wordlength of 16 bits, the proposed design consumes 61.5 mW and its area is 1.43 mm2.
Subject headings
- NATURVETENSKAP -- Data- och informationsvetenskap -- Datorteknik (hsv//swe)
- NATURAL SCIENCES -- Computer and Information Sciences -- Computer Engineering (hsv//eng)
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