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Multi-period upgrade scheduling method based on ultra-low loss optical fiber

A scheduling method and multi-cycle technology, applied in optical fiber transmission, selection devices of multiplexing systems, electrical components, etc., can solve the problems of lack of ultra-low-loss optical fiber upgrade scheduling, and sparse ultra-low-loss optical fiber application research, etc. To achieve the effect of saving spectrum resources

Active Publication Date: 2022-04-22
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the research on the application of ultra-low loss optical fiber is very rare, especially the research on the upgrade scheduling problem of multi-period ultra-low loss optical fiber

Method used

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  • Multi-period upgrade scheduling method based on ultra-low loss optical fiber
  • Multi-period upgrade scheduling method based on ultra-low loss optical fiber
  • Multi-period upgrade scheduling method based on ultra-low loss optical fiber

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0041] Such as figure 1 As shown, it is a multi-period upgrade scheduling method based on ultra-low loss optical fiber in a preferred embodiment of the present invention, including the following steps:

[0042] A. Set the number of fiber upgrade cycles and determine the maximum fiber length for upgrades in each cycle;

[0043] B. Randomly generate an upgrade scheduling sequence, and calculate the total upgrade gain of the sequence;

[0044] C. Re-randomly generate a new upgrade scheduling sequence, and calculate the total upgrade gain of the current sequence;

[0045] D. Calculate the difference obtained by subtracting the gain of the previous sequence from the gain of the curre...

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Abstract

The invention discloses a multi-cycle upgrade scheduling method based on ultra-low-loss optical fibers, comprising the following steps: A. Setting the number of optical fiber upgrade cycles, and determining the maximum optical fiber length upgraded in each cycle; B. Randomly generating an upgrade schedule sequence, and calculate the total upgrade gain of the sequence; C. Re-generate a new upgrade scheduling sequence randomly, and calculate the total upgrade gain of the current sequence; D. Calculate the difference obtained by subtracting the gain of the previous sequence from the gain of the current sequence, If the difference is greater than or equal to 0, the current upgrade scheduling sequence replaces the previous upgrade scheduling sequence; if the difference is less than 0, the current upgrade scheduling sequence is accepted according to the probability value formula; E. Perform multiple iterations, if the set number of times has not been updated The new upgrade schedule sequence terminates the iteration. The invention can find out the scheduling sequence with the largest gain value in all traversing processes, can obtain the scheduling with the highest spectrum utilization rate, and greatly save spectrum resources.

Description

technical field [0001] The invention relates to the technical field of optical fiber scheduling, in particular to a multi-cycle upgrade scheduling method based on ultra-low loss optical fibers. Background technique [0002] With the rapid development of Internet technology, new Internet services are gradually emerging, which leads to an explosive increase in the demand for network service bandwidth, and poses a huge challenge to the backbone network whose main component is the optical network. Therefore, it is necessary to consider how to further improve the transmission bandwidth and efficiency of the backbone optical network. At the same time, the maturity of optical channel high-order modulation technology has laid the foundation for the realization of 400G or even 1T optical channel services in the future. However, due to the widespread use of traditional standard single-mode optical fiber (G.652 optical fiber) in the existing network, the transmission distance of optic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q11/00H04B10/25
CPCH04Q11/0067H04B10/25H04Q2011/0086H04Q2011/0064
Inventor 李泳成柏晶晶沈纲祥
Owner SUZHOU UNIV