Mapping method of wireless virtual network

A technology of virtual network and mapping method, applied in the field of virtual network mapping, can solve the problems of limiting the mapping efficiency of virtual network mapping algorithm and neglecting research, and achieve the effect of improving long-term average success rate, realizing effective utilization, and multi- and long-term average income.

Inactive Publication Date: 2017-10-20
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

However, the problem of allocating the underlying resources of the infrastructure provider for the service provider's virtual network request, that is, the problem of virtual network mapping is one of the main challenges faced by network virtualization
[0003] Most of the existing virtual network mapping methods focus on the local resource attributes of nodes such as node CPU resources and egress link bandwidth resources, ignoring further research on attributes such as network connection information and available bandwidth resources between nodes, which objectively limits Improvement of Mapping Efficiency of Virtual Network Mapping Algorithm

Method used

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  • Mapping method of wireless virtual network
  • Mapping method of wireless virtual network
  • Mapping method of wireless virtual network

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Embodiment Construction

[0025] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Such as figure 1 , figure 2 As shown, building a wireless network virtualization mapping model includes a physical network model and an infinite virtual network request model, and the underlying physical network topology can be marked as a weighted undirected graph where N S Represents the collection of underlying I understand, L S Table 4 The set of underlying physical links, and Respectively represent the underlying node n S (n S ∈ N S ) and the underlying link l S (l S ∈ L S ) has properties. bottom node n S The attribute can be the available power of the node Pow(n S ), physical location loc(n S ) etc., while the underlying link l S The attribute of can be link available bandwidth resource Bw(l S )Wait. The loop-free path of the underlying network can be marked as P S .

[0027] The virtual network request ...

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Abstract

The invention relates to a mapping method of a wireless virtual network, and belongs to the technical field of the communication. The method comprises the following steps: selecting an appropriate node and path in a underlying physical network to satisfy a resource demand of a request under the situation that a service provider sends a virtual network mapping request; analyzing the virtual network request and the local or overall topology attribute of the node in the underlying physical network, ordering the priorities of the nodes in the mapping process by combining with the network local available resource, and selecting a bearing path with small interference and sufficient source for a virtual machine by simultaneously considering the interference time-varying behavior of the wireless link and the link load pressure distribution; therefore, the underlying network resource can be better utilized, the balance of the mapping resource distribution is improved, the construction success rate of the entire virtual network request can be improved, and the network benefit-to-cost ratio is increased.

Description

technical field [0001] The invention belongs to the technical field of communication, and relates to a virtual network mapping method in a wireless network environment. Background technique [0002] In recent years, with the rapid development of the Internet, network virtualization has received extensive attention. In a network virtualization environment, infrastructure providers manage and operate the underlying physical network, and service providers can lease network resources from infrastructure providers and create virtual network. However, the problem of allocating the underlying resources of the infrastructure provider for the request of the service provider's virtual network, that is, the problem of virtual network mapping, is one of the main challenges faced by network virtualization. [0003] Most of the existing virtual network mapping methods focus on the local resource attributes of nodes such as node CPU resources and egress link bandwidth resources, ignoring ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/22H04W40/04H04W40/16H04W72/04H04W72/08H04W72/10
CPCH04W16/22H04W40/04H04W40/16H04W72/0453H04W72/0473H04W72/541H04W72/56Y02D30/70
Inventor 张治中朱磊冯琳琳
Owner CHONGQING UNIV OF POSTS & TELECOMM
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