Abstract
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 language | English (US) |
---|---|
Pages (from-to) | 529-531 |
Number of pages | 3 |
Journal | IEEE Communications Letters |
Volume | 8 |
Issue number | 8 |
DOIs | |
State | Published - Aug 2004 |
ASJC Scopus subject areas
- Modeling and Simulation
- Computer Science Applications
- Electrical and Electronic Engineering