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Trusted Routing Method Based on Medium/Low Orbit Satellite Networks

A satellite network, double-layer satellite network technology, applied in the field of trusted routing based on medium/low orbit MEO/LEO satellite networks, can solve the problems of increasing satellite computing, meeting, satellite node attacks, etc. The effect of reliability, saving storage space and reducing communication overhead

Active Publication Date: 2019-07-16
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that, firstly, the calculation and modification of routing metrics by satellite nodes requires each satellite participating in routing forwarding to have computing power, which will increase the communication overhead of the satellite network.
However, the disadvantage of this method is that, firstly, the time slice is directly divided by the satellite, which will increase the calculation amount of the satellite
Secondly, when the routing node changes, satellite nodes are vulnerable to attacks from malicious nodes, which cannot meet the reliability requirements of routing

Method used

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  • Trusted Routing Method Based on Medium/Low Orbit Satellite Networks
  • Trusted Routing Method Based on Medium/Low Orbit Satellite Networks
  • Trusted Routing Method Based on Medium/Low Orbit Satellite Networks

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Embodiment Construction

[0049] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0050] Refer to attached figure 1 , the specific construction method of the MEO / LEO two-layer satellite network model of the present invention is described as follows.

[0051] figure 1 In the middle, IOL represents the inter-layer link, ISL represents the inter-satellite link, and the curve marked with "......." represents the inter-satellite link between two adjacent satellites in the same satellite layer , the curve marked with "-----" represents the inter-satellite link between a medium-orbit MEO satellite and a low-orbit LEO satellite, L12, L22, L32, L21, L23 represent low-orbit LEO satellites, they They are connected through the inter-satellite link ISL, M21 and M11 represent medium-orbit MEO satellites, and the medium-orbit MEO satellite M21 is connected with the low-orbit LEO satellite L32 through the interlayer link IOL.

[0052] Use the satellite...

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Abstract

The invention discloses a trusted routing method based on a medium / low-orbit satellite network, which solves the problems in the prior art of increasing communication overhead, increasing satellite calculation amount, and failing to meet routing reliability requirements. The specific implementation steps of the present invention are: first construct the medium / low orbit MEO / LEO double-layer satellite network model, divide the topology snapshot, send the topology snapshot report, generate the comprehensive link information report of the low orbit LEO satellite layer, and send the low orbit LEO satellite Layer comprehensive link information report, and then conduct trust evaluation on low-orbit LEO satellites to form a trusted network topology, and finally generate a simple routing table and forward the simple routing table. The invention effectively saves the storage space of MEO layer satellites, reduces communication overhead and enhances the reliability of routing.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a trusted routing method based on a medium / low orbit MEO / LEO (Medium / Low Earth Orbit) satellite network in the technical field of satellite network communication. The invention can obtain a credible inter-satellite route in the satellite network to ensure the reliability of space information transmission. Background technique [0002] In recent years, because Multilayered Satellite Networks (MLSN) with Inter-Satellite Link (ISL) can give full play to the advantages of satellites in different orbits and meet various service requirements, it has gradually become a satellite communication system. research hotspots. Satellite network routing technology, as a key part of satellite network technology, determines the efficiency and reliability of the entire satellite network system. [0003] Liu Xiaoyue, Yang Kai, and Ma Jianfeng proposed in their paper "Trusted Routing fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/751H04L12/721H04B7/185H04L45/02
CPCH04B7/18584H04L45/02H04L45/124
Inventor 董庆宽郑静陈原李冠群吴克强李军辉陶雅欣
Owner XIDIAN UNIV
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