Table 1 Parameters of the polar-coded OFDM System
From: Application research of polar coded OFDM underwater acoustic communications
Parameters | Description | Value |
|---|---|---|
\(f_{c}\) | Carrier frequency | 12 kHz |
\(B\) | Bandwidth | 8 kHz |
\(f_{s}\) | Sampling frequency | 48 kHz |
\(A\) | Number of subcarriers | 341 |
\(\Delta f\) | Subcarrier bandwidth | 23.4375 Hz |
\(\Delta S_{p}\) | Pilot Spacing | 4 |
\(T\) | Symbol duration | 42.7 ms |
\(T_{cp}\) | Cyclic prefix | 10.7 ms |
\(T_{g}\) | Guard interval | 300 ms |
\(N_{bl}\) | Blocks in each transmission | 20 |
\(N\) | Polar code length | 256 |
\(R\) | Polar code rate | 1/2,3/4 |
\(R_{D}\) | Data rate | 3.2 kb/s, 4.8 kb/s |