Table 1 LDPC decoding time (second) versus block size (CMMB 1/2, frame 10,000)
SNR | Block size | ||||||
|---|---|---|---|---|---|---|---|
| Â | 8 | 16 | 32 | 64 | 128 | 256 | Avg. iter. num |
1 | 224.5 | 170.0 | 146.3 | 142.3 | 142.6 | 149.2 | 93.3 |
1.5 | 45.8 | 37.1 | 30.8 | 29.6 | 30.5 | 31.5 | 18.0 |
2 | 2.7 | 22.4 | 18.9 | 18.0 | 18.8 | 19.5 | 10.3 |
2.5 | 21.3 | 17.5 | 14.8 | 14.2 | 14.8 | 15.2 | 7.5 |
3 | 17.6 | 14.5 | 12.5 | 12.0 | 12.5 | 12.8 | 5.9 |
3.5 | 15.3 | 12.8 | 10.9 | 10.6 | 11.0 | 11.3 | 4.9 |
4 | 13.5 | 11.3 | 9.8 | 9.6 | 9.8 | 10.0 | 4.1 |
Total | 365.9 | 285.5 | 244.0 | 236.3 | 240.0 | 249.6 | Â |