High-performance RDFT design for applications of digital radio mondiale

Shin Chi Lai, Wen Ho Juang, Yueh Shu Lee, Sheau-Fang Lei

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper presents a novel recursive discrete Fourier transform (RDFT) integrated with prime factor and common factor decomposition algorithms. For audio decoder and orthogonal frequency-division multiplexing (OFDM) in a DRM receiver, the proposed RDFT processor is applied to compute both DFT and IMDCT coefficients. Hence, it can greatly reduce the hardware costs in implementation of a portable DRM receiver. For computations of 256-points DFT, the proposed method can greatly reduce 82.75% of multiplications, 85.55% of additions, 79.66% of computational cycles compared with the latest Lai et al.'s RDFT. We further realize it by using TMSC 0.18um 1P6M CMOS technology. The core size is 840×840 um2 and the power consumption is 14.6mW@25MHz. The results show that it would be more efficient and more suitable than previous works for DRM applications.

Original languageEnglish
Title of host publication2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
Pages2601-2604
Number of pages4
DOIs
Publication statusPublished - 2013 Sep 9
Event2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013 - Beijing, China
Duration: 2013 May 192013 May 23

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Other

Other2013 IEEE International Symposium on Circuits and Systems, ISCAS 2013
CountryChina
CityBeijing
Period13-05-1913-05-23

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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