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

Free space optical fiber communication network routing method and device under delay tolerant network

A delay-tolerant network, free space technology, applied in optical fiber transmission, data exchange network, digital transmission system, etc., can solve the problems of atmospheric channel instability, low transmission success rate, etc., to break through the limitation of time and space, The effect of ensuring communication quality and high delivery success rate

Active Publication Date: 2021-04-20
STATE GRID CORP OF CHINA +2
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in free space optical fiber communication, the atmospheric channel is unstable, resulting in a low final transmission success rate

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
  • Free space optical fiber communication network routing method and device under delay tolerant network
  • Free space optical fiber communication network routing method and device under delay tolerant network
  • Free space optical fiber communication network routing method and device under delay tolerant network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention will be further explained in detail below in conjunction with the accompanying drawings and specific embodiments, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0040] The first step is to establish a mathematical model of the atmospheric channel

[0041] The terminal of optical communication mainly includes laser transceiver system and optical antenna. Under the delay-tolerant network, the related equipment of free space optical fiber communication network mainly includes laser transmitter, receiver, communication control system, APT system, and completes the transmission of information through the atmospheric channel. and receive.

[0042] Because there will be some fog, rain, snow and small particles of sand and dust in the atmospheric channel from time to time, the laser beam will be scattered and absorbed, and the laser light intensity will be attenuated. In addition...

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 free space optical fiber communication network routing strategy method under a delay tolerant network, which comprises the following steps: establishing an atmospheric channel mathematical model which is used for describing the influence of atmospheric turbulence and laser attenuation on an atmospheric channel; generating a delay tolerant network topological structure, setting the delay tolerant network topological structure by adopting a layered structure, performing information transmission by utilizing an atmospheric channel of free space optical fiber communication, setting a cluster head node and at least one cluster head member in each layer of structure, and forwarding and receiving information of the cluster head members through the corresponding cluster head nodes; optimizing routing. According to the method, the defects of a free space optical fiber communication network can be effectively overcome, the maximum round-trip time between nodes is prolonged, and the packet loss rate is reduced.

Description

technical field [0001] The invention relates to a routing setting method and device, in particular to a routing strategy method and device for a free-space optical fiber communication network under a delay-tolerant network. Background technique [0002] Free space optical fiber communication (FSO) technology has developed rapidly in recent years. It has large bandwidth, low price, good confidentiality and networking flexibility. FSO technology mainly uses laser signals to complete information transmission in the atmosphere and vacuum environment. And there is no need to lay optical fibers, and the simple antenna erection can meet the communication requirements. In optical fiber communication, a complete communication routing path needs to be established between the source node and the destination node, but the wireless communication distance between routing nodes affects the quality and efficiency of communication. Therefore, the routing strategy of optical fiber communicati...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/25H04L12/721
CPCY02D30/70
Inventor 李磊何涛饶强詹鹏汤弋周正孙俊陈璞闫生超巢玉坚贺易叶露杨硕张锦华李静茹王俊曦焦翰琳代静周德坤陈家璘马远东赵世文周浩波赵晓炜蔡新忠田崇军钟震坤胡志刚
Owner STATE GRID CORP OF CHINA
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