Wireless network virtualization mapping method based on anti-interference performance of links

Abstract

The invention discloses a wireless network virtualization mapping method based on the anti-interference performance of links. The method includes the steps: 1) performing screening according to virtual requests to obtain physical network resources; 2) building an interference model according to wireless physical links; 3) generating a virtual node list, a mapping relationship list from empty virtual nodes to physical nodes, an empty distributed virtual node list and an empty used channel list; 4) generating a physical node list and a neighbor node list of the physical nodes; 5) mapping the nodes; 6) screening the links; 7) selecting and mapping the links. As reliability and interference of the links can react to communication of the wireless links, the shortest path is found by a Dijkstra K-shortest path method, all the physical links in the path selected after link mapping are positioned in different channels in the used channel list, and distribution of the nodes and the links is effectively coordinated by a 'coordinated step-by-step' resource distribution method.

Description

technical field [0001] The invention relates to a wireless network virtualization mapping method based on link anti-interference. Background technique [0002] With the development of wireless networks, many access and core networks use wireless communication technology, and the virtualization technology of wireless networks has gained more and more attention and research. Wireless network virtualization can run multiple virtual wireless networks in the same physical network to support different customized services. The allocation of virtual networks is the core of network virtualization. It allocates underlying physical network resources for each virtual network request, and at the same time satisfies virtual network requests as much as possible and minimizes the use of underlying network resources. In the wired network architecture, the resource allocation problem of network virtualization is mainly to map virtual nodes and virtual links to appropriate physical nodes and ...

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a wireless network virtualization mapping method based on link anti-interference, the purpose of which is to overcome the existing in the above-mentioned prior art. Uneven and inefficient allocation of network node and link resource virtualization

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