Table 7 Sample of spectrally efficient modulation-code pair which give a target BER of \(10^{-2}\) at given range of SNR value
From: Enhanced adaptive code modulation for rainfall fade mitigation in Ethiopia
BER = \(10^{-2}\) | |||
|---|---|---|---|
SNR range (dB) | Modulation | Code rate | Data rate (b/s/Hz) |
\({<}\)1.9 | 4 QAM | 1/2 | 1 |
33–3.85 | 16 QAM | 1/3 | 1.33 |
3.85–6.6 | 4 QAM | 3/4 | 1.5 |
6.8–8.45 | 16 QAM | 1/2 | 2 |
9.4–11.75 | 16 QAM | 2/3 | 2.66 |
12–12.9 | 64 QAM | 1/2 | 3 |
13.8–15.3 | 64 QAM | 2/3 | 4 |
15.3–17.4 | 64 QAM | 3/4 | 4.5 |
17.4–18.1 | 128 QAM | 3/4 | 5.25 |
18.8–20.3 | 256 QAM | 3/4 | 5.33 |
20.3–23 | 256 QAM | 3/4 | 6 |
23–25.43 | 512 QAM | 3/4 | 6.75 |
\({>}\)25.43 | 1024 QAM | 3/4 | 7.5 |