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A quality-of-service-aware virtual network mapping method and device

A technology of virtual network mapping and virtual network, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc. It can solve the problems of only considering delay, few QoS metrics, low request receiving rate and resource utilization rate, etc.

Active Publication Date: 2021-09-28
BEIJING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In practical applications, the inventors of the present invention have found that the above-mentioned existing QoS-aware VNE algorithms only consider delay, and the QoS metrics are too few; and all virtual network requests are treated uniformly, resulting in low request reception rate and resource utilization

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  • A quality-of-service-aware virtual network mapping method and device
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Embodiment Construction

[0052] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0053] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0054] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that when an element is referred to as being "connected" or "coupled" to another el...

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Abstract

The present invention discloses a quality of service-aware virtual network mapping method and device. The method includes: for each virtual node requested by the current virtual network to be mapped, the node mapping strategy network obtained in advance is trained according to the current underlying physical network output the node mapping result of the virtual node; based on the node mapping results of all virtual nodes in the virtual network request, complete the link mapping of the virtual network request; wherein, the node mapping policy network is based on training The difference between the resource utilization rate U of the underlying physical network and the service quality loss L requested by the virtual network is obtained as a reward training. The application of the present invention can realize the balance between satisfying multiple service quality measurement indexes and improving resource utilization.

Description

technical field [0001] The present invention relates to the technical field of virtual network mapping, in particular to a quality of service-aware virtual network mapping method and device. Background technique [0002] Network virtualization allows multiple virtual networks (VNs) to run concurrently on a shared underlying physical network (SN). The virtual network is composed of a group of virtual nodes and the virtual links connecting these virtual nodes, and the underlying physical network is composed of a group of physical nodes and the physical links connecting these physical nodes. Virtual network mapping (VNE) is one of the key technologies of network virtualization. The main goal of VNE is to map virtual network requests (VNRs) to SNs, thereby efficiently utilizing the resources of the underlying physical network. At present, a large number of heuristic VNE algorithms and machine learning-based VNE algorithms have been proposed. [0003] Among them, the heuristic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/927H04L29/08H04L47/80
CPCH04L47/805H04L67/61
Inventor 卢美莲李蒙
Owner BEIJING UNIV OF POSTS & TELECOMM
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