Research Article
Log-Likelihood Ratio Calculation for Iterative Decoding on Rayleigh Fading Channels Using Padé Approximation
Table 2
Comparison between the iterative thresholds for LDPC code ensembles using different LLR calculation methods.
| (a) LDPC code ensemble |
| | | True LLR | Taylor3 | Pade23 |
| | 0.644755 | 0.644754 | 0.644755 | | [dB]
| 3.810759 | 3.810772 | 3.810759 |
|
|
| (b) LDPC code ensemble |
| | | True LLR | Taylor3 | Pade23 |
| | 0.36770 | 0.36766 | 0.36770 | | [dB]
| 6.929215 | 6.930160 | 6.929215 |
|
|
| (c) LDPC code ensemble |
| | | True LLR | Taylor3 | Pade23 |
| | 1.0263757 | 1.0263752 | 1.0263757 | | [dB]
| 2.784088 | 2.784092 | 2.784088 |
|
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