Name
Title | ||
|---|---|---|
Simplified LLRs for the decoding of single parity check turbo product codes transmitted using 16QAM |
Abstract | ||
|---|---|---|
Iterative soft-decision decoding algorithms require channel log-likelihood ratios (LLRs) which, when using 16QAM modulation, require intensive computations to be obtained. Therefore, we derive four simple approximate LLR expressions. When using the maximum a posteriori probability algorithm for decoding single parity check turbo product codes (SPC/TPCs), these LLRs can be simplified even further. We show through computer simulations that the bit-error-rate performance of (8,7)2 and (8,7)3 SPC/TPCs, transmitted using 16QAM and decoded using the maximum a posteriori algorithm with our simplified LLRs, is nearly identical to the one achieved by using the exact LLRs. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1155/2007/53517 | J. Electrical and Computer Engineering |
Field | DocType | Volume |
Quadrature amplitude modulation,Expression (mathematics),Computer science,Algorithm,Communication channel,Modulation,Single parity check,Maximum a posteriori estimation,Decoding methods,Computation | Journal | 2007, |
ISSN | Citations | PageRank |
2090-0147 | 0 | 0.34 |
References | Authors | |
2 | 3 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Maher Arar | 1 | 0 | 1.01 |
| Claude D'Amours | 2 | 44 | 12.78 |
| Abbas Yongaçoglu | 3 | 107 | 23.19 |