The Research Of Virtualization Technology On Radio Over Fiber Network

Access scenarios for high bandwidth,low latency and large number of terminal access have become the research hotspot of the fifth generation mobile communication technology.With the rise of services such as Vehicle Networking,massive data processing and multi-dimensional resource optimization allocation have aggravated the complexity of management and control of optical wireless access network.In view of the complex management and control of optical wireless access network and the high resource dimension,virtualization technology provides an effective method for multi-service access carrying and fog computing and access network integration.In order to improve the management and control agility of access network and the unified and effective allocation of multi-dimensional resources,optical wireless access network virtualization will become the trend of future mobile communication access network development.This paper focuses on the evolving requirements of optical wireless access network towards future mobile access,studies the implementation scheme of optical wireless access network virtualization and resource optimization allocation method,and deeply studies the access network architecture based on virtualization technology,the unified arrangement method of network resource slices and the virtual mapping method oriented to cloud and fog cooperative processing.It achieves th e agility of management and control of optical wireless access network as well as the optimization of resource allocation method.The goal of effective resource allocation is to form innovation and breakthroughs in the framework system.The main work and innovative achievements of this paper are as follows:Firstly,based on the architecture and resource dimension of the optical wireless access network,the virtualization model of the optical base station in the wireless access network is constructed.With the background of cooperative transmission and deployment of macro and micro base stations,focusing on the complex access control and high resource dimension of multi-base stations in mass terminals,virtualization technology is used to unify business guidance among BBUs,reduce information interaction constraints among multi-BBUs,and achieve effective business carrying.Secondly,combined with the application of network slicing technology in optical wireless access network,facing multi-dimensional resource slicing arrangement,the management method of optical wireless access network slices is constructed,an d the relationship between slices is established.Under the condition of unified multi-dimensional resource allocation,the utilization rate of resources is improved,and the complexity of access network management and control is reduced.Thirdly,in order to meet the futuristic requirements of cloud computing and cloud-based wireless access network integration,the control management system of cloud-based wireless access network is constructed to achieve effective allocation of computing resources and complete the business load of cloud computing nodes.With the help of K-means algorithm in machine learning,a virtual network mapping method based on node location information is proposed,which can minimize the access processing delay under the condition of meeting the demand of business computing.