Key node identification method for Sink node underwater acoustic sensor network
A technology of underwater acoustic sensors and key nodes, which is applied in data exchange networks, transmission systems, digital transmission systems, etc., and can solve problems such as difficulty in evaluating the importance of nodes
Active Publication Date: 2020-10-20
西安瀚智锐熵科技有限责任公司
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Problems solved by technology
In order to quickly find the key nodes in the network during the working process of the underwater acoustic sensor network, so as to provide the necessary information for further network topology control and security protection, the demand for the importance of nodes in the topology and security protection of the underwater network and the node The importance is difficult to evaluate and other problems, and a key node identification method for the Sink node underwater acoustic sensor network is proposed
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[0062] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0063] Taking the EALR layered opportunistic routing protocol widely used in underwater acoustic sensor networks as an example, the corresponding key node identification implementation scheme is given below:
[0064] Sink node underwater acoustic sensor network node scenario based on EALR layered opportunistic routing protocol figure 2 As shown, the nodes use acoustic signals for information transmission. Node 1 is the Sink node, which is placed on the water surface. Nodes 2-21 are all ordinary nodes, which are placed at different depths underwater according to task requirements. Ordinary nodes send data to Sink nodes according to their own business needs.
[0065] Such as figure 1 Shown, the steps of the technical solution adopted by the present invention to solve the technical problems are as follows:
[0066] Step 1: The Sink node acts as the de...
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The invention provides a key node identification method for a Sink node underwater acoustic sensor network. By collecting seven features of the Sink node underwater acoustic sensor network, namely theusability, the hop distance, the degree, the betweenness, the compactness, the feature vector centrality and the vulnerability, and fusing the multi-dimensional features, the importance evaluation value of each node is finally obtained, so that very effective prerequisite information is provided for network topology control and security protection. According to the invention, the importance of each node in the network is evaluated in a multi-dimensional, effective and accurate manner, the delivery rate and throughput of the network can be greatly improved, and the network time delay is reduced. And meanwhile, in an enemy environment, the defense against the own key node is enhanced, so that potential threats are eliminated in time, and the own network security is enhanced.
Description
technical field [0001] The invention relates to the technical field of underwater acoustic sensor networks, is a method for identifying key nodes of the underwater acoustic sensor network aimed at sink nodes, and can provide necessary information for topology control and safety protection of the underwater acoustic sensor network. Background technique [0002] There are abundant resources in the ocean, and the realization of ocean observation, resource exploration and development is one of the most concerned issues of all oceanic countries. In recent years, the underwater acoustic sensor network has made great progress due to the continuous expansion of the application field of marine information, and has important applications in marine military affairs, marine environment and meteorological research, and marine resource development. [0003] Due to the needs of its business, the underwater acoustic sensor network mostly adopts the sink node topology. There are two kinds o...
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IPC IPC(8): H04B13/02H04L12/24H04L29/06
CPCH04B13/02H04L41/12H04L63/20
Inventor 申晓红员一帆王海燕孙霖马石磊李宁
Owner 西安瀚智锐熵科技有限责任公司