Research Article
Precoded IM-OFDM-SS for Underwater Acoustic Communication
Table 1
Experimental pool results.
| No. | OFDM | IM-OFDM-SS Walsh | IM-OFDM-SS ZC | Proposed DCT Walsh | Proposed DCT ZC | Proposed DHT Walsh | Proposed DHT ZC |
| 1 | 0.018 | 0.020 | 0.020 | 0.0038 | 0.0031 | 0.0035 | 0.0031 | 2 | 0.0096 | 0.0072 | 0.0061 | 0.0021 | 0.0022 | 0.0021 | 0.0021 | 3 | 0.027 | 0.0041 | 0.0035 | 0.0035 | 0.0035 | 0.0030 | 0.0033 | 4 | 0.026 | 0.023 | 0.022 | 0.0091 | 0.009 | 0.0093 | 0.0088 | 5 | 0.0072 | 0.0061 | 0.0065 | 0.00054 | 0.00052 | 0.00053 | 0.00054 | Average | 0.0176 | 0.0121 | 0.0116 | 0.0038 | 0.0037 | 0.0037 | 0.0036 |
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