Communication Method Applied to Underwater Acoustic Communication Network

Abstract

The invention discloses a communication method applied to an underwater acoustic communication network, and relates to the technical field of underwater acoustic communication. The method includes the following steps: initializing the network and establishing network topology information; retaining a two-level adjacent node table, eliminating empty nodes and simplifying the network node structure by sending inquiry broadcasts to adjacent nodes; first judging whether the data contains Path information, if there is no path information, establish the transmission path first; complete the data transmission through the RTS‑CTS handshake process; After the communication is completed, the activation time window is reserved. During the activation time, the node can send data without a wake-up signal; the target node receives the data, and after receiving the RTS information, listens to the channel status and sends it when it is judged that the channel is not occupied. CTS information, then receive data, and send ACK information after success; regularly update the adjacent node table.

Description

technical field [0001] The invention relates to the technical field of underwater acoustic communication, in particular to a communication method applied to an underwater acoustic communication network. Background technique [0002] The underwater acoustic communication network is a distributed, multi-node, and multi-node communication network composed of sensor nodes (including fixed sensor nodes and mobile platforms loaded with sensors) and buoy nodes on the seabed and in the sea, as well as single / two-way acoustic links between them. A comprehensive system that covers a large underwater three-dimensional area, can collect, process, classify and compress information, and can relay back to land-based or ship-based information control centers through underwater nodes. [0003] The characteristics of underwater acoustic communication channels are complex, and there are problems such as multipath, attenuation, low sound velocity, and small bandwidth. [0004] Multipath proble...

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a communication method applied to an underwater acoustic communication network, which solves the problem that the existing wireless network protocol cannot guarantee the quality of underwater communication, and at the same time minimizes the cost of the acoustic communication network system while ensuring the throughput. power consumption

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