Design of early stopping unit in parallel turbo decoder based on galois field operation

Hyeji Kim, Ji Hoon Kim

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

1 Scopus citations

Abstract

The early stopping of turbo decoder is widely used in LTE / LTE-Advanced systems to avoid unnecessary iterations. To achieve high throughput requirements in next generation mobile communication systems, parallel turbo decoding where multiple SISO (Soft-Input Soft-Output) decoders work is commonly employed. Although CRC (Cyclic Redundancy Check)-based stopping criterion is well known by its superior performance, conventional CRC implementation is hard to be applied to parallel turbo decoding due to the timing overhead incurred by the intrinsic feature where the input data should be serialized. In this paper, to reduce the timing overhead, we present the parallel CRC architecture based on GF (Galois field) operations with negligible hardware overhead.

Original languageEnglish
Title of host publicationISOCC 2013 - 2013 International SoC Design Conference
PublisherIEEE Computer Society
Pages50-51
Number of pages2
ISBN (Print)9781479911417
DOIs
StatePublished - 2013
Event2013 International SoC Design Conference, ISOCC 2013 - Busan, Korea, Republic of
Duration: 17 Nov 201319 Nov 2013

Publication series

NameISOCC 2013 - 2013 International SoC Design Conference

Conference

Conference2013 International SoC Design Conference, ISOCC 2013
Country/TerritoryKorea, Republic of
CityBusan
Period17/11/1319/11/13

Keywords

  • GF multiplication and addition
  • parallel CRC
  • parallel turbo decoder
  • stopping criteria

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