Research On Embedding Algorithm Of Wireless Network Virtualization Process

Mobile network operations are currently facing continued growth in traffic pressure,while the underlying physical resources are becoming increasingly tense.Wireless network virtualization can make a variety of wireless networks share the same physical infrastructure resources,is an effective way to deal with the problem.One of the main challenges is how to efficiently and reliably allocate and utilize the underlying physical network resources based on the virtual network request.This paper first introduces the theoretical knowledge and development background of network virtualization.On this basis,the paper analyses and puts forward some related algorithms and strategies for virtual network mapping.First of all,this paper gives the network virtualization related to the theoretical knowledge,including the development of network virtualization history,the existing research on the network virtualization related research and some implementation methods.It mainly includes the typical problem description and MILP model of VN mapping,and gives the implementation process of two related VN mapping algorithms in detail.This paper studies a virtual network mapping algorithm based on ant colony optimization.The algorithm considers load and spectral continuity in the node mapping phase.In the link mapping phase,the node availability level is sorted,thus reducing the blocking rate of the virtual network request.The simulation results show that the algorithm can not only reduce the blocking probability and occupancy frequency,but also can balance the link load.Secondly,this paper presents an attempt to map the multimedia network,which is the edge cloud for the multimedia service.For the wireless variability of the wireless communication environment,the bandwidth utilization of the wireless network will show a certain range of fluctuation and change The The final simulation results show that the proposed network mapping strategy scheme is in accordance with the expected results in the multimedia resource scenario with specific condition constraints,so as to provide some reference for the actual and more complicated application scenarios.