Time-varying turbo codes

Fan Jiang, Matthew R. Becker, Lance C. Pérez

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Turbo codes typically utilize time-invariant component codes whose total encoder memory is no greater than 4. In this letter, turbo codes with time-varying component codes are studied via EXIT analysis, distance spectrum analysis and simulation. Turbo codes with time-varying component codes and memory 6 are shown to have similar performance in the waterfall region and superior performance in the error floor region when compared to both the original memory 4 Berrou turbo code and the memory 8 Big Numerator-Little Denominator turbo codes.

Original languageEnglish (US)
Pages (from-to)529-531
Number of pages3
JournalIEEE Communications Letters
Issue number8
StatePublished - Aug 2004

ASJC Scopus subject areas

  • Modeling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering


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