LEO satellite network reliability routing method based on QoS guarantee

A satellite network and reliability technology, applied in the field of LEO satellite communication, can solve problems such as unbalanced load on the satellite, frequent dynamic changes in network topology, and prone to failure of satellite nodes and links

Active Publication Date: 2021-03-26
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the environment of the outer space satellite network is relatively harsh and complex, there are situations such as frequent dynamic changes in network topology, unbalanced load on the satellite, electromagnetic interference, and prone to failure of satellite n...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • LEO satellite network reliability routing method based on QoS guarantee
  • LEO satellite network reliability routing method based on QoS guarantee
  • LEO satellite network reliability routing method based on QoS guarantee

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0088] An exemplary embodiment of the present invention will now be described in detail with reference to the drawings. It should be understood that the embodiments shown and described in the drawings are merely exemplary, intended to illustrate the principles and spirit of the invention, and is not limited to the scope of the invention.

[0089] Prior to describing the specific embodiments of the present invention, some of the abbreviations of the present invention are first explained to better understand the present invention:

[0090] Leo: Low Earth Orbit, Low Rail Satellite;

[0091] QoS: Quality Of Service, Quality of Service

[0092] ISL: Inter-Satellite Link, Star link;

[0093] S_LSA: Satellite Link State Advertisement, Satellite Link Status Report;

[0094] P_LSA: Plane Link State Advertisement, Track Side Link Status Report;

[0095] NSB: NetWork State Base, full network status information library;

[0096] Larac: Lagrange Relaxation based Aggregated COST, Lagrangian rel...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an LEO satellite network reliability routing method based on QoS guarantee, and the method comprises the following steps: guiding flow of a hot spot area to transfer to a non-hot spot area, designing strict QoS constraints while selecting a route to complete search of an inter-satellite routing path so as to ensure that the found path has the optimal service quality; and the congestion probability of the satellites passing through the light-weight load task as much as possible is reduced, so that the packet loss rate is reduced, and the reliability of a routing forwarding path is improved.

Description

Technical field [0001] The present invention belongs to the field of LEO satellite communication technology, and specifically, it is directed to a design of a QoS protection based LEO satellite network reliability routing method. Background technique [0002] With the rapid development of space information technology, the Low or Low Earth Orbit satellite communication system plays an increasingly important role in global communication, navigation positioning, meteorological prediction, disaster monitoring and military applications, and as LEO Satellite Communication Network Key Technologies is a star routing algorithm that enhances the core factors of the entire satellite communication network performance. However, due to the environment in which the outer space satellite network is more bad, it is more complicated, there is a case in which the network topology is frequent, the load imbalance, electromagnetic interference, satellite node and chain can be faulty. In order to ensur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04W16/22H04W28/02H04W40/02H04W40/12H04W84/06
CPCH04W16/22H04W28/0268H04W28/0289H04W40/02H04W40/12H04W84/06
Inventor 王文滔杨凡德廖丹简平李航李慧
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap