Research Article
PC-MAC: A Prescheduling and Collision-Avoided MAC Protocol for Underwater Acoustic Sensor Networks
Table 1
Data packet length in different modems.
| Modem type | Data rate | Preamble duration time | Packet duration time |
| Benthos ATM-855 | 800 bps | 1.5 s | 5.5 s | Aqua-sent | 3.045 kbps | 0.49 s | 1.53 s | WHOI micromodem | 300–5000 bps | 0.87 s | 1.5 s–11.54 s |
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