A 512-point 8-parallel pipelined feedforward FFT for WPAN
2011 (English)In: 2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), IEEE , 2011, 981-984 p.Conference paper (Refereed)
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.
Place, publisher, year, edition, pages
IEEE , 2011. 981-984 p.
IdentifiersURN: urn:nbn:se:liu:diva-127977DOI: 10.1109/ACSSC.2011.6190157OAI: oai:DiVA.org:liu-127977DiVA: diva2:927931
IEEE Asilomar Conference on Signals, Systems, and Computers. 6-9 Nov. 2011 Pacific Grove, CA, USA