An Area and Power Efficient FFT Processor for UWB Systems

Author

Qiao, Shushan ; Hei, Yong ; Wu, Bin ; Zhou, Yumei

Author_Institution

Inst. of Microelectron., Chinese Acad. of Sci., Beijing

fYear

2007

fDate

21-25 Sept. 2007

Firstpage

582

Lastpage

585

Abstract

This paper presents a novel 128-point Fast Fourier Transform (FFT) processor for practical Ultra-wideband (UWB) applications. The pipeline FFT processor based on the proposed non-Cooley-Tukey radix-8 unit can provide high throughput rate and has low hardware complexity. The radix-8 unit´s hardware cost can save up to 20% compared with Radix-2 Single path Delay Feedback (R2SDF) architecture. Furthermore, both the input and output are in nature order. A 128-point FFT processor has been designed and implemented with SMIC 0.18 mum CMOS process based on the proposed architecture. The throughput rate of proposed FFT processor is up to 409.6 Msample/s, which can meet the specification of UWB systems.

Keywords

fast Fourier transforms; ultra wideband technology; FFT processor; Radix-2 Single path Delay Feedback architecture; UWB systems; fast Fourier Transform processor; CMOS process; Costs; Delay; Fast Fourier transforms; Feedback; Hardware; Pipelines; Process design; Throughput; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1311-9

Type

conf

DOI

10.1109/WICOM.2007.151

Filename

4339926