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Spatially Coupled Protograph-Based LDPC Codes for Incremental Redundancy

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Author

Summary, in English

We investigate a family of protograph based rate-compatible LDPC convolutional codes. The code family shows improved thresholds close to the Shannon limit compared to their uncoupled versions for the binary erasure channel as well as the AWGN channel. In fact, the gap to Shannon limit is almost uniform for all members of the code family ensuring good performance for all subsequent incremental redundancy transmissions. Compared to similar code families based on regular LDPC codes [1] the complexity of our approach grows slower for the considered rates.

Publishing year

2012

Language

English

Pages

155-159

Publication/Series

2012 7th International Symposium on Turbo Codes and Iterative Information Processing (ISTC)

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Keywords

  • spatial coupling
  • LDPC codes
  • raptor codes

Conference name

International Symposium on Turbo Codes & Related Topics (ISTC), 2012

Conference date

2012-08-27 - 2012-08-31

Conference place

Gothenburg, Sweden

Status

Published

Research group

  • Telecommunication Theory

ISBN/ISSN/Other

  • ISSN: 2165-4700
  • ISBN: 978-1-4577-2114-4