A joint optimization method for monitoring trace generation combined with wavelength allocation in all-optical networks

An all-optical network and wavelength allocation technology, applied in electromagnetic wave transmission systems, electrical components, transmission systems, etc., and can solve problems such as neglecting wavelength resources

Inactive Publication Date: 2017-09-12
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these current studies are only focused on reducing the number of monitors, while ignoring the wavelength resources

Method used

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  • A joint optimization method for monitoring trace generation combined with wavelength allocation in all-optical networks
  • A joint optimization method for monitoring trace generation combined with wavelength allocation in all-optical networks
  • A joint optimization method for monitoring trace generation combined with wavelength allocation in all-optical networks

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Embodiment

[0063] figure 1 It is a topology diagram of an all-optical network.

[0064] In this example, if figure 1 As shown, an all-optical network topology is randomly given, which includes 5 nodes 1-5 to be monitored and 7 links. according to figure 1 The topology of the link is represented by node labels at both ends of the link, and the monitoring track is deployed according to the method of the present invention, so as to complete the monitoring and positioning of the failed link.

[0065] Such as figure 2 As shown, in an all-optical network of the present invention, a joint optimization method for monitoring trace generation in combination with wavelength distribution comprises the following steps:

[0066] S1. Initialize related parameters

[0067] The next hop node weight function w=deg-k*m when initializing the monitoring trace extension 2 The upper limit K of the weight function coefficient k in / M, the initial value k←k of the weight function coefficient k 0 , The gr...

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Abstract

The invention discloses a combined optimization method for generating monitoring traces combined with wavelength allocation in an all-optical network. In the design process of a link failure monitoring system based on monitoring traces, not only the number of monitors is considered, but also the consumption of wavelength resources is included in the overall In the calculation of the cost, the number of monitoring traces carried by a single link is added to the constraints of monitoring trace generation, so that the monitoring traces are appropriately biased in the extension process to select links with fewer monitoring traces; at the same time, the algorithm also combines the layered graph The model increases the candidate monitoring set and expands the search space for understanding, so that the number of monitoring traces carried by a single link is significantly reduced, and the total cost of the monitoring system is further reduced after the resource optimization algorithm is adopted. In the case of a high proportion of the wavelength resource cost, the optimization effect is more obvious, and the total cost of the link failure monitoring system can be minimized.

Description

technical field [0001] The invention belongs to the technical field of all-optical networks with wavelength division multiplexing, and more specifically relates to a combined optimization method for generating monitoring traces combined with wavelength distribution in all-optical networks. Background technique [0002] Since the development of the communication network, the all-optical network using wavelength division multiplexing technology has become the main trend of the current communication network development. However, all-optical networks have a very big disadvantage, that is, they are easily damaged and are very sensitive to damage. Then we must study a set of effective solutions for this situation, in order to achieve the goal of quickly locating the failed link. In an all-optical network, a traditional method for monitoring a failed link is a channel-based or link-based method. Subsequently, the researchers proposed a design that uses a monitoring cycle at the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/077
CPCH04B10/0771H04B10/0773
Inventor 任婧袁加宇邹欣钰徐世中赵阳明陈欢王阳王雄
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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