A Multimodal Routing Method for Underwater Communication

An underwater communication, multi-modal technology, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve problems such as link formation, underutilization of effective links, and network node congestion.

Active Publication Date: 2021-05-14
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the traditional flooding routing method is not suitable for underwater communication networks, it often causes network node congestion, data transmission to inefficient links, resulting in increased data redundancy and delay, and effective links are idle and not fully utilized. , and links into loops, etc.

Method used

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  • A Multimodal Routing Method for Underwater Communication
  • A Multimodal Routing Method for Underwater Communication
  • A Multimodal Routing Method for Underwater Communication

Examples

Experimental program
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Embodiment

[0021] Such as figure 1 Shown is a flow chart of a multi-modal routing method for underwater communication, the method comprising steps:

[0022] (1) Before the transmission work starts, record the node information and broadcast the discovery message through each node to detect the information of the underwater communication network;

[0023] Specifically, record node information includes:

[0024] Use a matrix to record whether each node is in the state of sending and receiving messages at a certain time, and the matrix is ​​called a collision matrix;

[0025] A matrix is ​​used to record the data backlog situation among the current nodes, and the matrix is ​​called a backlog data matrix.

[0026] Specifically, the information of the underwater communication network includes: underwater network topology, node distance, technology used for communication between nodes, data packets that each node needs to send within a certain period of time and its initial size, and the orig...

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Abstract

The invention discloses a multi-modal routing method for underwater communication, which comprises the steps of: recording node information and detecting information of an underwater communication network before the transmission work starts; finding all node disjoint routes from each node to a destination node, Each node retains the node disjoint route with the shortest length; sorts the data packets to be transmitted in each node from small to large; calculates the transmission capacity allocation ratio that the node can allocate to the next hop node at the current moment; uses Linear regression calculates the transmission capacity that the node transmits to the next hop node, and uses the simulated annealing algorithm to optimize each transmission capacity to obtain the maximum transmission capacity; use the collision matrix to detect whether the data packet can be successfully transmitted; repeat the above Steps until the specified run time is reached. The invention improves the network service quality while ensuring the link transmission quality.

Description

technical field [0001] The invention relates to the field of network transmission optimization for underwater communication, in particular to a multi-mode routing method for underwater communication. Background technique [0002] Underwater communication is generally carried out underwater using acoustic technology, but the characteristics of slow sound propagation and narrow bandwidth restrict its application. Underwater multi-mode communication technology applies multiple communication means (such as underwater acoustic communication, optical communication, electromagnetic communication, etc.) to underwater communication, and takes advantage of various communication means in different occasions. Because the traditional flood routing method is not suitable for underwater communication networks, it often causes network node congestion, data transmission to inefficient links causes data redundancy and delay increase, and effective links are idle and not fully utilized. , And...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/735H04L12/729H04L12/721H04L12/705H04B13/02H04L45/128H04L45/125H04L45/18
CPCH04L45/1287H04L45/125H04L45/18H04L45/14H04B13/02
Inventor 梁志豪丁跃华
Owner SOUTH CHINA UNIV OF TECH
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