Sequential design of a 8192 complex point FFT in OFDM receiver

Se Ho Park, Dong Hwan Kim, Dong Seog Han, Kyu Seon Lee, Sang Jin Park, Jun Rim Choi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

In this paper we propose an implementation method for a single-chip 8192 complex point FFT in terms of sequential data processing. In order to reduce the required chip area for the sequential processing of 8 K complex data, a DRAM-like pipelined commutator architecture is used. The 16-point FFT is a basic building block of the entire FFT chip, and the 8192-point FFT consists of the cascaded blocks with six stages of radix-4 and one stage of radix-2. Since each stage requires rounding of the resulting bits while maintaining the proper S/N ratio, the convergent block floating point (CBFP) algorithm is used for the effective internal bit rounding. As a result the proposed structure brings about the 55% chip size reduction compared with conventional approach.

Original languageEnglish
Title of host publicationAP-ASIC 1999 - 1st IEEE Asia Pacific Conference on ASICs
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages262-265
Number of pages4
ISBN (Print)0780357051, 9780780357051
DOIs
StatePublished - 1999
Event1st IEEE Asia Pacific Conference on ASICs, AP-ASIC 1999 - Seoul, Korea, Republic of
Duration: 23 Aug 199925 Aug 1999

Publication series

NameAP-ASIC 1999 - 1st IEEE Asia Pacific Conference on ASICs

Conference

Conference1st IEEE Asia Pacific Conference on ASICs, AP-ASIC 1999
Country/TerritoryKorea, Republic of
CitySeoul
Period23/08/9925/08/99

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