Table 1 Quantization parameters related to Fig. 5 in signed two’s complement representation
From: Efficient quantization and fixed-point representation for MIMO turbo-detection and turbo-demapping
Index | Quantization | Index | Quantization | ||||
|---|---|---|---|---|---|---|---|
64-QAM | 16-QAM | QPSK | 64-QAM | 16-QAM | QPSK | ||
i1 | Q 4.8 | Q 4.8 | Q 4.8 | i13 | Q 8.8 | Q 7.9 | Q 3.13 |
i2 | Q 5.7 | Q 5.7 | Q 5.7 | i14 | Q 8.8 | Q 9.7 | Q 6.10 |
i3 | Q 6.6 | Q 6.6 | Q 6.6 | i15 | Q 8.8 | Q 8.8 | Q 8.8 |
i4 | Q 2.8 | Q 2.8 | Q 2.8 | i16 | Q 2.14 | Q 2.14 | Q 2.14 |
i5 | Q 3.7 | Q 3.7 | Q 2.8 | i17 | Q 1.15 | Q 1.15 | Q 1.15 |
i6 | Q 4.12 | Q 4.12 | Q 4.12 | i18 | Q 2.14 | Q 2.14 | Q 1.15 |
i7 | Q 6.10 | Q 6.10 | Q 6.10 | i19 | Q 4.12 | Q 4.12 | Q 3.13 |
i8 | Q 5.11 | Q 5.11 | Q 5.11 | i20 | Q 4.6 | Q 4.6 | Q 4.6 |
i9 | Q 6.10 | Q 6.10 | Q 6.10 | i21 | Q 1.9 | Q 1.9 | Q 1.9 |
i10 | Q 2.14 | Q 2.14 | Q 2.14 | i22 | Q 4.12 | Q 3.13 | Q 2.14 |
i11 | Q 3.13 | Q 3.13 | Q 2.14 | i23 | Q 4.12 | Q 3.13 | Q 2.14 |
i12 | Q 6.10 | Q 3.13 | Q 1.15 | i24 | Q 4.12 | Q 2.14 | Q 1.15 |