A 50mbps double-binary turbo decoder for wiMAX based on bit-level extrinsic information exchange

Ji Hoon Kim, In Cheol Park

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

9 Scopus citations

Abstract

A 50Mbps, 2.24mm2 double-binary turbo decoder is designed and implemented in 0.13μm CMOS process for the WiMAX standard. To reduce the large extrinsic memory needed in double-binary turbo decoding, the proposed decoder exchanges the bit-level extrinsic information values rather than the traditional symbol-level extrinsic information values, which is achieved by deriving two simple conversions. The proposed turbo decoder, with a low-complexity hardware interleaver generating interleaved addresses for two data flows simultaneously, provides an efficient stopping criterion for double-binary turbo decoding using bit-level extrinsic information as well as huge memory size reduction of 20.6%.

Original languageEnglish
Title of host publicationProceedings of 2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008
Pages305-308
Number of pages4
DOIs
StatePublished - 2008
Event2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008 - Fukuoka, Japan
Duration: 3 Nov 20085 Nov 2008

Publication series

NameProceedings of 2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008

Conference

Conference2008 IEEE Asian Solid-State Circuits Conference, A-SSCC 2008
Country/TerritoryJapan
CityFukuoka
Period3/11/085/11/08

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