Table 5 Example of three patterns for mapping GF(64) symbols to STBC codewords
From: Low complexity soft demapping for non-binary LDPC codes
Number | Antenna number | Mapping pattern (m1 = 4, m2 = 6, m3 = 3) | |||||
|---|---|---|---|---|---|---|---|
| Â | Â | I0 | Q0 | I1 | Q1 | I2 | Q2 |
P1 | A#1 | a 0 a 1 | a 2 a 3 | b 2 b 3 | b 4 b 5 | c 4 c 5 | d 0 d 1 |
| Â | A#2 | a 4 a 5 | b 0 b 1 | c 0 c 1 | c 2 c 3 | d 2 d 3 | d 4 d 5 |
P2 | A#1 | a 0 a 1 | b 0 b 1 | a 2 a 3 | b 2 b 3 | a 4 a 5 | b 4 b 5 |
| Â | A#2 | c 0 c 1 | d 0 d 1 | c 2 c 3 | d 2 d 3 | c 4 c 5 | d 4 d 5 |
P3 | A#1 | a 0 a 1 | a 2 a 3 | b 2 b 3 | c 0 c 1 | c 4 c 5 | d 0 d 1 |
| Â | A#2 | a 4 a 5 | b 0 b 1 | b 4 b 5 | c 2 c 3 | d 2 d 3 | d 4 d 5 |