1. Preface 2. Introduction 3. Topics bordering the physical layer
2.1. Underwater communications
2.2. The acoustic channel
2.3. Networking
3.1. Time Synchronization
3.1.1. Clock inaccuracy model
3.1.2. Time synchronization protocols
3.1.3. Summary
3.2. Full-duplex links
3.2.1. Link layer
3.2.2. Physical layer
3.2.3. Concluding notes
3.3. Adaptive data rate
3.3.1. The physical layer...