Multi-path coordinative communication method for underwater sound sensor network

Abstract

The invention discloses a multi-path coordinative communication method for an underwater sound sensor network, belongs to the technical field of underwater sound communication, and aims at solving the problem that unstable point-to-point underwater sound communication in the underwater sound sensor network leads to increase network delay and even paralysis. The method is that different signals are transferred to the same collecting node through different relay nodes to obtain space diversity gain provided by different channels for receiving and decoding, and therefore, the reliability of underwater sound communication under the network environment can be improved. According to the method, the underwater sound physical communication technology and the route technology are combined by the cross-layer type protocol design method according to the application feature of the underwater sound sensor network, and meanwhile, the optimal selection of the reliable underwater sound communication and the relay node can be achieved, and therefore, the network protocol efficiency can be obviously increased.

Description

Technical field [0001] The underwater acoustic communication network of the present invention specifically relates to a multi-path cooperative communication method used in the underwater acoustic sensor network. Background technique [0002] With the development of marine science and marine development, the research of underwater acoustic communication technology has received more and more attention, and the research of underwater acoustic sensor network has also become a frontier hot spot. [0003] The underwater acoustic sensor network refers to the acquisition of underwater information through sensor nodes in a certain underwater area, acoustic communication and networking of the underwater nodes, and finally through the surface buoy gateway node to wirelessly obtain the information in the coverage area The information is incorporated into the regular network on shore and sent to the observer’s underwater subnet. [0004] When the underwater acoustic sensor network is applied, it...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a multi-path cooperative communication method for underwater acoustic sensor networks in order to solve the problem of increased time delay or even network paralysis of underwater acoustic sensor networks caused by point-to-point underwater acoustic communication instability. Point-to-point communication and routing selection are combined, the physical layer technology and network routing protocol are jointly optimized, and the method of multi-path cooperation is adopted to obtain the space diversity gain when the node receives information, so as to improve the reliability of underwater acoustic communication in the network environment and ensure the underwater acoustic communication. Robustness of Acoustic Sensor Networks

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