Performance analysis of different radix2 structure

Author

Rao, K. Hanumantha ; Kumar Charlie Paul, C.

Author_Institution

St. Peter´s Univ., Chennai, India

fYear

2014

fDate

8-8 July 2014

Firstpage

405

Lastpage

408

Abstract

The manifestation of radix2 was a highlight in the design of efficient FFT hardware architectures. Afterward, radix2 was extended to R2MDC and R2SDF However, radix2 was only planned for (SDF) single-path delay feedback structures, other than not intended for feed-forward ones, also called (MDC) multi-path delay Commutator. In this paper, the design of R2MDC (Radix2 Multipath Delay Commutator and R2SDF (Radix2 Single path Delay Feedback is presented. The number of delay element in R2MDC is more than R2SDF. Hence frequency utilization in R2MDC is less than R2SDF FFT structure. Hardware utilization of R2MDC is low compared to R2SDF. Simulation is performed to analyze the results through ModelSim6.3c. Synthesis process is carried out by Xilinx10.1.

Keywords

digital arithmetic; fast Fourier transforms; logic design; FFT hardware architecture; ModelSim6.3c; R2MDC; R2SDF; multipath delay commutator; radix2 structure; single-path delay feedback structures; Computer architecture; Conferences; Delays; Discrete Fourier transforms; Hardware; OFDM; Pipelines; Feed Forward; Feedback; ModelSim; R2MDC; R2SDF; Xilinx;

fLanguage

English

Publisher

ieee

Conference_Titel

Current Trends in Engineering and Technology (ICCTET), 2014 2nd International Conference on

Conference_Location

Coimbatore

Print_ISBN

978-1-4799-7986-8

Type

conf

DOI

10.1109/ICCTET.2014.6966326

Filename

6966326