Underwater acoustic node exposed terminal solving method based on table mechanism and using propagation delay

Abstract

The invention discloses an underwater acoustic node exposed terminal solving method based on table mechanism and using propagation delay. The method is based on a handshaking mechanism, each underwater acoustic communication node obtains global node information in a network through self-learning of the table mechanism, and transmission tasks in the network are planned. The self-learning process ofthe table mechanism of the underwater acoustic node mainly comprises three parts which are respectively table initialization, table storage and table updating. The underwater acoustic node exposed terminal solving method provided by the invention has the advantages of searching for the exposed terminal in the network based on the table mechanism, being capable of effectively making use of communication propagation delay among the nodes to improve channel utilization rate and reduce collision among the nodes, thereby improving throughput of the network, reducing network average delay and improving quality of an underwater acoustic network.

Description

technical field [0001] The invention relates to a method for solving an underwater acoustic node exposure terminal based on a table mechanism and utilizing a propagation delay, and belongs to the field of underwater acoustic communication. Background technique [0002] Due to the complexity and variability of underwater acoustic channels, underwater acoustic communication has the characteristics of long propagation delay, narrow bandwidth, and low throughput. In the traditional underwater acoustic network MAC protocol, when two nodes communicate with each other, the exposed terminals around them will enter a dormant state to prevent collisions, resulting in the waste of underwater acoustic channels during this period, which greatly reduces the channel utilization and network performance. throughput. In an underwater acoustic communication network, the less collisions between nodes in a given time, the more communication transmission tasks, the higher the channel utilization...

AI Technical Summary

Problems solved by technology

In the traditional underwater acoustic network MAC protocol, when two nodes communicate with each other, the surrounding exposed terminals will enter a dormant state to prevent collisions, resulting in wasted underwater acoustic channels during this period, greatly reducing channel utilization and network performance. throughput

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