Abstract
Distance spectrum (DS) calculation is a complicated task for general trellis codes. The DS is used to enumerate the transfer function (TF), which in turn is used for BEP upper-bound calculations. Quasi-regularity is a symmetry that was introduced to conventional trellis codes to simplify DS calculations. In this paper, the definition of quasi-regularity is extended to ST trellis codes. Also, to reflect the unequal error protection capabilities, the TF is modified to enumerate every input bit individually. A new BEP upper-bound for individual input bits is derived.
| Original language | English |
|---|---|
| Pages (from-to) | 45-58 |
| Number of pages | 14 |
| Journal | Arabian Journal for Science and Engineering |
| Volume | 28 |
| Issue number | 2 C |
| State | Published - Dec 2003 |
Keywords
- BEP upper-bound
- Distance properties
- Distance spectrum
- Performance analysis
- Quasi-regularity
- Space-time trellis codes
- Transfer function
- Unequal error protection
ASJC Scopus subject areas
- General