Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Satellite network reliable routing method based on virtual nodes

A virtual node and routing technology, which is applied in network planning, radio transmission system, electrical components, etc., can solve the problem of the complexity of satellite node routing information acquisition, achieve good routing convergence, good scalability, and reduce the waste of available bandwidth Effect

Inactive Publication Date: 2009-06-17
NANJING UNIV OF POSTS & TELECOMM
View PDF0 Cites 57 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Technical problem: The purpose of the present invention is to provide a reliable routing method for satellite networks based on virtual nodes to solve the complexity of satellite node routing information acquisition

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
  • Satellite network reliable routing method based on virtual nodes
  • Satellite network reliable routing method based on virtual nodes
  • Satellite network reliable routing method based on virtual nodes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032]The satellite network routing method of the present invention is composed of the definition of "virtual node", the acquisition of reliable routing information and the inheritance of the routing information of "virtual node". Through the definition of "virtual node", we divide the earth's surface covered by the satellite system into several ground logical areas represented by (longitude value, latitude value), and the actual satellite is represented by the address of a certain ground logical area covered by it ; After the satellite is expressed as a "virtual node", it is necessary to obtain the connectivity of the surrounding "virtual nodes" through reliable routing information; due to the dynamic topology of the satellite network system, when the role of the "virtual node" played by the satellite changes At the same time, it is hoped that the routing information owned by the "virtual node" can be passed to the next satellite that plays this role, and the forwarding path o...

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 relates to a satellite network reliable routing method on the basis of virtual nodes, which is applied in single-layer routing protocols under similar polar orbit constellation models and is mainly used to solve the complexity problem that a satellite node obtains routing information. The method comprises: marking a satellite by an address of a ground logic area which is covered by the satellite, namely, being endowed with a specific role, knowing the communication conditions of surrounding virtual nodes through sending a link probe packet, generating a route updating information packet under the virtual nodes, setting flooding hop number as N, then, sending to link interfaces which satisfy the demands, receiving satellite virtual nodes of the route updating information packet, correcting parameters in the route updating information packet, extracting reached hop number J of information of each route prefix of the route updating information packet, and obtaining the theoretical shortest path length L from the satellite virtual nodes to the target ground logic area through a computational method of the ideal shortest path length, wherein the routing method shields the dynamictopology characteristics of internet, improves the routing astringency, and lowers the time delay of data packet transfer.

Description

technical field [0001] The invention is a dynamic routing method suitable for a satellite network, which is mainly used to solve the complexity problem of satellite nodes obtaining routing information under the dynamic topological structure of the satellite network, and belongs to the field of network protocol design. Background technique [0002] In recent years, due to its important strategic position, the satellite network has gradually become a research hotspot in the world's space powers. The satellite network connects satellites of different orbits, types and performances, space vehicles and other space entities and ground facilities through satellite interstellar and satellite-ground communication links, forming an integrated communication network that can cover the whole world. The principle of effective comprehensive utilization, interconnection, and organically constituted intelligent system. The satellite network has independent information acquisition, storage, ...

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): H04W40/02H04W16/22H04B7/185
Inventor 王汝传张勇饶元徐小龙郑彦孙力娟张登银
Owner NANJING UNIV OF POSTS & TELECOMM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com