Priority message forwarding method applied to allowed time delay network

A delay network and message forwarding technology, applied in the field of deep space communication, can solve the problem of single non-real-time business

Active Publication Date: 2013-02-13
CHINA ACADEMY OF SPACE TECHNOLOGY
View PDF2 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technology of the present invention solves the problem: overcomes the deficiencies of the prior art, provides a priority message forwarding method applied to a delay-tolerant network, and solves the problem of not distinguishing non-real-time services in a delay-tolerant network and only providing a single The problem of best-effort service, which further improves the ability of the delay-tolerant network to support QoS for various services

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
  • Priority message forwarding method applied to allowed time delay network
  • Priority message forwarding method applied to allowed time delay network
  • Priority message forwarding method applied to allowed time delay network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further introduced below in conjunction with the accompanying drawings.

[0018] The present invention applies buffer area management and message forwarding oriented to multi-priority services to a delay-tolerant network to solve the problem of multi-priority message forwarding for non-real-time services, and designs a method for forwarding priority messages in a time-delay-tolerant network It has important reference and practical value.

[0019] The inventive method such as figure 1 As shown, the steps are as follows:

[0020] (1) Prioritize the information to be transmitted in the information source part in the delay-tolerant network, and set respective priorities;

[0021] (2) In the information source part, according to the order of priority, sequentially send the information to be transmitted to the forwarding nodes in the delay-tolerant network;

[0022] (3) The forwarding buffer in the forwarding node and the caching of the sendin...

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 priority message forwarding method applied to an allowed time delay network, which comprises the following steps: carrying out priority classification on messages at a source node and when a node is contacted with a forwarding node, and sending the messages to the forwarding node according to priorities; by the forwarding node in the network, carrying out cache region configuration and message forwarding on the received messages and messages to be sent of the node; and then sending the message with the corresponding priority when the node is contacted with a subsequent forwarding node, wherein an information sink takes charge of receiving the data messages and carrying out corresponding storage according to the priorities. According to the invention, different sending cache regions are set at the source node according to different priority requirements of services and at the message forwarding nodes, forwarding cache regions facing the messages with different priorities are set and the message forwarding is carried out, so that the problem of distinguishing QoS (Quality of Service) requirements of non-real-time services in the allowed time delay network is solved.

Description

technical field [0001] The invention belongs to the technical field of deep space communication, and relates to a priority message forwarding method applied to a delay-tolerant network. Background technique [0002] A delay-tolerant network refers to a network characterized by intermittent connections, frequent fragmentation, extremely high delay, asymmetric packet rate, high bit error rate and packet loss rate, and heterogeneous interconnection. The basic assumptions of this type of network and the traditional network on the lower link, such as, the message transmission time between any two nodes will not exceed a certain value, each link is connected most of the time in the working state, and the message transmission time The packet loss rate is very small and other characteristics are completely different, so designing a reasonable network packet forwarding method becomes the key to effective implementation of the network. [0003] In recent years, researchers have succe...

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): H04L12/851
Inventor 陶滢高梓贺刘乃金周钠陈东
Owner CHINA ACADEMY OF SPACE TECHNOLOGY
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