SNDU: Sequential Networking for Distributed Underwater Acoustic Sensor Network

It is of great theoretical significance and application value to construct a reliable underwater sensor network (UWSN), and the networking protocol plays a key role in the data transmission of UWSN. The research of traditional underwater networking protocols mostly focuses on the process of topology discovery with low energy consumption and fast convergence without recognizing the problem of route repair in the case of node failure. Aiming at achieving low delay, low collision rate and high robustness, this paper proposes a sequential networking protocol suitable for distributed underwater acoustic sensor networks. The protocol is divided into two stages: on Stage 1, the strategy of laying and networking is adopted to shorten the networking time; on Stage 2, the importance of nodes in the network is assigned to achieve the effect of quickly selecting sub-optimal routes and reducing the delay of fault repair. Simulation results show that this protocol can effectively reduce the networking time and fault repair time in UWSN, and reduce the networking communication and repair communication times, which may well contrapuntally meet the needs of low latency, low energy consumption, high repair rate and other scenarios.