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

Shared buffer device and control method thereof based on network coding and fdl ring feedback

A technology of network coding and shared cache, which is applied in the structural field of optical packet switching competition solution, can solve problems such as packet header blocking, achieve the effect of increasing the success probability of caching and solving optical packet contention

Active Publication Date: 2017-09-19
CHONGQING UNIV OF POSTS & TELECOMM
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest problem is the header blocking problem

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
  • Shared buffer device and control method thereof based on network coding and fdl ring feedback
  • Shared buffer device and control method thereof based on network coding and fdl ring feedback
  • Shared buffer device and control method thereof based on network coding and fdl ring feedback

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The node structure of the present invention will be described below in depth with reference to the accompanying drawings.

[0025] figure 1 Shown is a schematic diagram of the network coding and FDL ring feedback shared buffer node structure used for contention resolution in OPS, including a control module, an OPS switching matrix, a network coding module and an FDL ring feedback shared buffer module. (The FDL ring feedback shared buffer module in the figure is illustrated by the cascade of 4 sub-switching matrices and 4 FDL buffer groups, and it can also be multiple sub-switch matrices and FDL buffer groups cascaded into a ring), the network coding extension in the OPS switching matrix The output port is connected to the optical splitter of the network coding module, the OPS switch matrix ring feedback shared buffer extension output port is connected to the extension input port of the sub-switch matrix, the extension output port of the sub-switch matrix is ​​connected ...

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 annular feedback, sharing and caching device based on network coding and an FDL and a control method of the device, and relates to the technical field of optical communication. Multiple competitive groups have access to a network coding module for network coding through network coding extension output ports in an OPS switching matrix, and time delay can not be introduced. When the network coding module can not completely solve competition, competitive optical packets have access to an extension input port of a switching submatrix through an annular feedback sharing and caching extension port of the OPS switching matrix, and the most proper cache is selected in a minimum cache length cascading control method. The most proper cache is output by means of the switching submatrix, the OPS switching matrix extension input port is switched to an OPS matrix basic output port through the OPS switching matrix, and the cache is output to an optical fiber line. The device has remarkable effects in reducing the packet loss rate, reducing the time delay, increasing caching capacity and improving the utilization rate of the fiber delay line, and can well solve the problem of optical packet competition.

Description

technical field [0001] The invention relates to the field of optical fiber communication, in particular to a structure and a corresponding control method applied to optical packet switching contention resolution. technical background [0002] Optical packet switching (OPS: Optical packet switching) is considered to be the inevitable trend of all-optical switching in the future due to its advantages of small granularity, fast switching rate, low overhead and high bandwidth utilization. When multiple packets of the same wavelength need to be output from the same port of an intermediate node at the same time, wavelength competition between packets occurs. In an OPS network, the data-centric optical packet collision probability is high, and how to solve the optical packet contention is a crucial issue to ensure network performance. In the current situation of the immature optical domain RAM (Random access memory), there are three main competing solutions: fiber delay line (FDL:...

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 Patents(China)
IPC IPC(8): H04Q11/00H04J14/02H04L12/933H04L12/861
Inventor 刘焕淋胡婷周邦陶沈钦仁李瑞艳陈勇黄胜
Owner CHONGQING 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