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Trusted routing method based on medium earth orbit/low earth orbit network

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 problems such as increasing satellite computing, satellite node attack, meeting, etc., and achieves enhanced availability. reliability, reduce communication overhead, and save storage space

Active Publication Date: 2017-05-17
XIDIAN UNIV
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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 earth orbit/low earth orbit network
  • Trusted routing method based on medium earth orbit/low earth orbit network
  • Trusted routing method based on medium earth orbit/low earth orbit network

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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 means the inter-layer link, ISL means the inter-satellite link, and the curve marked with “………” means the inter-satellite link between two adjacent satellites in the same satellite layer The curve marked with "_____" indicates the inter-satellite link between a medium-orbit MEO satellite and a low-orbit LEO satellite, and L12, L22, L32, L21, and L23 indicate low-orbit LEO satellites. The inter-satellite link ISL is connected, and 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 toolkit STK to build 66 low-o...

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Abstract

The invention discloses a trusted routing method based on a medium earth orbit / low earth orbit network, aiming at solving the problems in the prior art that the communication expense is increased, the satellite calculation amount is increased and the trust requirements of routing cannot be met. The trusted routing method comprises the specific realization steps: firstly, constructing a medium earth orbit / low earth orbit MEO / LEO double-layered satellite network model; dividing topological snapshot and sending a topological snapshot report; generating a comprehensive link information report of a low earth orbit LEO satellite layer; sending the comprehensive link information report of the low earth orbit LEO satellite layer; carrying out trust evaluation on a low earth orbit LEO satellite, so as to construct a trusted network topology; and finally, generating a simple routing table and transmitting the simple routing table. According to the trusted routing method, a storage space of an MEO layer satellite is effectively saved, the communication expense is reduced and the dependability of routing is enhanced.

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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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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