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A multi-path cooperative communication method for underwater acoustic sensor network

A cooperative communication and multi-path technology, applied in error prevention/detection using return channel, transmission system, digital transmission system, etc., can solve problems such as network paralysis, increased delay of underwater acoustic sensor network, etc., and achieve reliable data transmission , The effect of reliable relay node selection and improving protocol efficiency

Active Publication Date: 2018-02-13
THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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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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  • A multi-path cooperative communication method for underwater acoustic sensor network
  • A multi-path cooperative communication method for underwater acoustic sensor network
  • A multi-path cooperative communication method for underwater acoustic sensor network

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Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with accompanying drawing and embodiment:

[0043] Network information frames are divided into control frames and data frames. Control frames are short frames, which are used to transmit a small amount of control information. Generally, a more reliable low-rate modulation method is used; data frames are long frames, which are used to transmit a large amount of effective data information. Generally, a high-speed modulation method is used. In the present invention, control frames include HELLO, PING, ECHO, WAKE1, WAKE2, ACK1 and ACK2 frames, and data frames are represented by DATA frames. by figure 1 The shown underwater acoustic sensor network topology is an example, and the realization process of the present invention is as follows:

[0044] Step 1: Network initialization, the network node obtains the local hop count, the address of the adjacent node and its hop count.

[0045] In the initial stat...

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Abstract

The invention discloses a multi-path cooperative communication method for an underwater acoustic sensor network, belonging to the technical field of underwater acoustic communication. The present invention aims at the problem of increased network delay or even paralysis caused by unstable point-to-point underwater acoustic communication in the underwater acoustic sensor network. By forwarding the same signal from different relay nodes to the same convergence node, different channels are obtained as follows: Receive the space diversity gain provided by decoding, and then improve the reliability of underwater acoustic communication in the network environment. The present invention starts from the application characteristics of the underwater acoustic sensor network, adopts a cross-layer protocol design method, combines the underwater acoustic physical layer communication technology with the routing technology, and simultaneously realizes reliable underwater acoustic communication and optimal selection of relay nodes, significantly improving improve the protocol efficiency of the network.

Description

technical field [0001] The underwater acoustic communication network of the present invention specifically relates to a multi-path cooperative communication method for an underwater acoustic sensor network. Background technique [0002] With the development of marine science and marine development, the research of underwater acoustic communication technology has been paid more and more attention, and the research of underwater acoustic sensor network has also become a frontier hotspot. [0003] The underwater acoustic sensor network refers to the acquisition of underwater information through sensor nodes in a certain underwater area, and acoustic communication and networking of underwater nodes, and finally through the surface buoy gateway node to wirelessly transmit the information obtained in the coverage area. The information is integrated into the conventional network onshore and sent to the underwater subnetwork of the observer. [0004] The application of underwater a...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L1/16
Inventor 谢哲岳志杰张宏滔王忠康
Owner THE 715TH RES INST OF CHINA SHIPBUILDING IND CORP
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