Parametrizable behavioral IP module for a data-localized low-power FFT

Author

Brockmeyer, E. ; Ghez, C. ; Eer, J.D. ; Catthoor, F. ; Man, H. De

Author_Institution

IMEC, Leuven, Belgium

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

635

Lastpage

644

Abstract

FFTs are important modules in embedded telecom systems, many of which require low-power real-time implementations. This paper describes a technique for aggressively localizing data accesses in a (inverse) fast Fourier transformation at the source code level. The global I/O functionality is not modified and neither is the bit-true arithmetic behavior. Typically 20 to 50% of the background memory accesses can be saved. A heavily parametrizable solution is proposed which leads to a family of power optimized algorithm codes. Moreover, efficient coding details for specific instances are shown

Keywords

embedded systems; fast Fourier transforms; mathematics computing; telecommunication computing; data access; data-localized low-power FFT; embedded telecom systems; fast Fourier transform; global input output functionality; low-power real-time implementations; memory access; parametrizable behavioral IP module; source code level; Application software; Arithmetic; Batteries; Embedded software; Flexible printed circuits; Hardware; Packaging; Real time systems; Software packages; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Systems, 1999. SiPS 99. 1999 IEEE Workshop on

Conference_Location

Taipei

ISSN

1520-6130

Print_ISBN

0-7803-5650-0

Type

conf

DOI

10.1109/SIPS.1999.822370

Filename

822370