Hierarchical cooperative routing method and system for underwater ad hoc network

Abstract

The invention discloses a hierarchical cooperative routing method and system for an underwater ad hoc network. The nodes in the underwater self-organizing network cluster forward the collected data tothe corresponding cluster head nodes, the cluster head nodes transmit the data to the cluster head nodes on the upper layer, and the final cluster head nodes forward the data to the aggregation nodethrough the nodes on the water surface layer; the intra-cluster nodes forward the collected data to the corresponding cluster head nodes, and the nodes participating in communication are set as a source node, a relay node and a destination node; the source node broadcasts to the relay node and the destination node at the same time, performs threshold pre-judgment at the destination node, and judges the quality of a transmission signal by utilizing a noise threshold; and if the quality of the signal received at the destination node is lower than the noise threshold value, the relay node is started to carry out cooperative transmission of data. According to the method, the data transmission rate and the survivability of the network are improved, and the formed system provides an important guarantee for the application of the underwater self-organizing network in an actual seabed observation network.

Description

Technical field [0001] The present disclosure relates to the technical field of underwater self-organizing networks, and in particular to a layered collaborative routing method and system for underwater self-organizing networks. Background technique [0002] The statements in this section merely mention background technologies related to the present disclosure, and do not necessarily constitute prior art. [0003] The ocean has a vast area and abundant resources, and the exploration of the ocean has become a research focus today. With the development of science and technology, the self-organizing network has been enough to adapt to the underwater environment, forming an underwater self-organizing network. Underwater self-organizing networks are usually used in kelp observation networks, mainly in deep water environments. Since radio waves are absorbed by seawater and attenuate rapidly, underwater acoustic communication is usually used. The underwater acoustic signal has a long en...

AI Technical Summary

Problems solved by technology

S.Ahmed et al. proposed an adaptive cooperation protocol. Nodes match a unidirectional antenna to coordinate transmission to reduce network overhead, but increase end-to-end delay.

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