Underwater acoustic sensor network multi-buoy opportunistic routing method based on distance vector

Abstract

The invention belongs to the field of underwater acoustic sensor networks, and relates to an underwater acoustic sensor network multi-buoy opportunistic routing method based on distance vectors. The method comprises the following steps: S1, a plurality of water surface buoy nodes periodically broadcast query packets to underwater nodes; S2, forwarding the query packet by the underwater relay node,and establishing a distance vector; S3, after the underwater source node receives the query packet, obtaining a minimum distance vector, and sending a data packet in a broadcast mode; S4, forwardingthe data packet via the underwater relay node; S5, repeating the step S4 until any water surface buoy receives the data packet; and S6, after the water surface buoy nodes receive the data packets, carrying out coordination among the multiple water surface buoy nodes, and finally transmitting the data packets to the aggregation node. Only the distance vector information instead of the depth information or the position information of the nodes is used for underwater transmission, the problems of a blank area and'bypassing a long path 'can be well solved, and the method is suitable for a water area where a plurality of water surface buoy nodes are deployed.

Description

technical field [0001] The invention belongs to the field of underwater acoustic sensor networks, and relates to a multi-buoy opportunity routing method for underwater acoustic sensor networks based on distance vectors. Background technique [0002] The underwater acoustic sensor network is a very important technology in exploring the water environment, and has been widely used, such as seismic detection, oil field development, ocean observation and underwater navigation. There is a control and deployment center in the underwater acoustic sensor network, which is used to collect the data information of each underwater sensor node, thus forming a sensor network. Therefore, the routing mechanism setting and data transmission from underwater sensor nodes to surface buoy nodes is an important auxiliary technology for underwater applications. [0003] Due to the unique characteristics of the underwater acoustic environment, underwater acoustic sensor networks face many challenge...

AI Technical Summary

Problems solved by technology

[0005] Existing opportunistic routing methods for underwater acoustic sensor networks often make forwarding judgments based on depth information or geographic location information. On the one hand, it increases the complexity of the equipment, and on the other hand, it cannot avoid the blank area problem

Although there are some solutions to the blank area problem, the overhead of signaling interaction increases, and the use of

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