Research On Service-Oriented Function Dynamic Deployment Mechanism In Smart Identifier Wireless Network

With the rapid development of network technology,people's demand for the network is growing day by day.Massive terminal devices are connected to the network.Various personalized customized network services are increasing,and the data traffic of the communication network is growing rapidly.However,as new services continue to emerge,higher demands are placed on existing network architectures.In the traditional network architecture,different network services need to be implemented in proprietary hardware devices.When deploying new services or upgrading existing services,it is often necessary to update hardware devices,resulting in huge expenses.Faced with a wide variety of network requirements,the current Internet architecture is difficult to cope with the flexible deployment,deletion,and modification of service requirements.In order to solve the above problems,the Smart Identifier Network proposes a new component model in the network component layer.The network function virtualization technology is used to divide the network component into two parts:the general hardware platform and the virtual network function,which greatly increases the flexibility and scalability of the network.However,how to strategically deploy virtual network functions in general devices to optimize resource allocation is an important challenge in dynamic wireless network environment.This paper proposes a service-oriented function dynamic deployment mechanism in the resource adaption layer of the Smart Identifier Network.The network function deployment algorithms are designed to optimize the deployment and scheduling of network functions,which can intelligently select the deployment nodes and the traffic forwarding paths of the network functions.It can realize the dynamic deployment and resource optimization of wireless access point,firewall and other network functions,thus realizing the manageable and controllable deployment of network services.Firstly,this paper gives an overview of the Smart Identifier Network in the wireless access environment and it proposes the dynamic deployment of network functions.Secondly,the demand analysis of the virtual network function deployment mechanism is carried out.The overall design framework of the service-oriented function dynamic deployment mechanism is proposed,including information management module,orchestration decision module,deployment delivery module,demand update module and state storage module.For the different service requirements,three deployment scheduling models are proposed,namely delay minimization model,node cost minimization model and link resource minimization model.Next,the implementation of the function dynamic deployment mechanism is described in detail.Through the coordination of each module,the common component resources are arranged and scheduled for different service requirements.Thus,service functions are deployed into common components,and data transmission of services is realized.Finally,each functional module is validated in the test environment.The feasibility and effectiveness of this mechanism in the wireless environment of the Smart Identifier Network are verified by the performance test.The experimental results show that the dynamic deployment mechanism designed in this paper can realize the dynamic deployment of network functions in the wireless access network environment for different service requirements.The mechanism can effectively utilize network resources from three different perspectives:delay,node cost and link resources.