Location-Aware Source Routing Protocol for Underwater Acoustic Networks of AUVs

Figure 1

Implicit versus explicit data. Node 𝐵 transmits a message for node 𝐶. Nodes 𝐴 and 𝐶 each detect and receive it (the message is intended for 𝐶, but 𝐴 has overheard it). The detection provides an implicit range estimate to node 𝐵; the reception provides all of the explicit routing information contained in the message (e.g., in the source route). Node 𝐷 detects but does not receive the message, thus 𝐷 gains an implicit range estimate to node 𝐵 but gets none of the explicit data.