Efficient virtual optical network survivability mapping method for service reliability

A technology of virtual optical network and mapping method, applied in the field of efficient virtual optical network survivability mapping, can solve problems such as economic loss of operators and users, multi-link failure of optical fiber links, etc., to improve the probability of protection bandwidth sharing, reduce The effect of bandwidth blocking rate and improving request acceptance rate

Inactive Publication Date: 2020-10-30
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Therefore, introducing network virtualization technology into SDM-EONs can further improve network transmission capacity and spectrum utilization, but the combination of SDM-EONs and this technology will also cause some probl

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  • Efficient virtual optical network survivability mapping method for service reliability
  • Efficient virtual optical network survivability mapping method for service reliability
  • Efficient virtual optical network survivability mapping method for service reliability

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Embodiment Construction

[0041] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0042] Among them, the figures are only for illustrative purposes, and what are shown are only schematic diagrams rather than physical figures, and should not...

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Abstract

The invention relates to an efficient virtual optical network survivability mapping method for service reliability, and belongs to the technical field of optical communication. According to the method, during virtual node mapping, a physical node weight evaluation criterion comprehensively considering physical node attributes is designed, and virtual nodes with large weight values are sequentiallymapped to physical nodes with large weight values; during virtual link mapping, a working optical path selection strategy considering idle spectrum resources and optical path reliability is designed,and a protection optical path selection strategy for improving protection optical path reliability and protection bandwidth sharing degree is designed; and meanwhile, a frequency spectrum partitioning method is introduced, a working light path frequency spectrum allocation method based on frequency spectrum integration factor perception is designed, and when frequency spectrum blocks are allocated to the working light path, the frequency spectrum blocks enabling frequency spectrum resources of a physical light path and adjacent links to be more integrated are selected. The method provided bythe invention can effectively improve the request acceptance rate of the virtual optical network and reduce the bandwidth blocking rate.

Description

technical field [0001] The invention belongs to the technical field of optical communication, and relates to a service reliability-oriented high-efficiency virtual optical network survivability mapping method. Background technique [0002] With the continuous emergence of various high-bandwidth and low-latency emerging services such as live video, telemedicine, and smart cities, the network business volume has increased rapidly, and people's demands for network services have become more diversified. Due to the limitation of physical factors, it is difficult to meet the development requirements of future transmission network. Compared with WDM networks, Elastic Optical Networks (EONs) can divide the optical spectrum into finer-grained frequency slots, and can flexibly allocate spectrum resources according to the needs of differentiated services. Intelligent optical network with development potential. [0003] However, the achievable capacity of EONs based on single-mode sin...

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Application Information

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IPC IPC(8): H04Q11/00
CPCH04Q11/0062H04Q2011/0086
Inventor 刘焕淋马敬陈勇
Owner CHONGQING UNIV OF POSTS & TELECOMM
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