Model And Analyse The Communication Services Based On The P2P Network

As the communication network and computer network are developing, network convergence is an inevitable developing trend of next generation networks. Providing the services which meeting the telecom QoS is one of goals of next generation network development. Currently, VoIP and streaming media are typical services of communication. The traditional telecom network adopted client\server architecture which brings the high cost, load imbalance, poor scalability and other shortcomings,therefore,this architecture has been unable to meet the needs of VoIP and streaming media services development of next generation network. Each node in the P2P network is both a client and a server that can be a good solution to these problems. However the logical relationship between P2P nodes is relative to the specific communication services. Therefore, using P2P networking technology in telecommunication network to implement VoIP and Streaming media functions, we need to establish the mathematical models for network nodes functions, network performance so as to provide a reference basis for the deployment of network nodes. The major work of this paper is establishing models for network nodes'functions according to the P2P network communication service features. Analyse user operational pattern of behavior, establish user behavior model, research the process of network communications services and analyse the relations between serving nodes and user nodes on the basis of establishing models. Finally, we establish network communication services models in order to identify the factors that affect network performance and provide a theoretical basis for the deployment of network services based on specific scenarios of the P2P network communication services.In order to analyse the characteristics of P2P network services, this paper first establishes the" functional model of communication services based on the P2P networks. For the P2P VoIP network communication service, node functional models has been established and signaling interaction process between nodes had been designed. For the P2P streaming network communication services, node functional models has been established and signaling interaction process between nodes has been designed both in the live and on-demand scenarios.This paper research on the service process of P2P network services on the basis of establishing the P2P network communication functional models. In this paper, I analyse the relationship between service process of P2P network services and user behaviors of the services and model the service process of P2P network services.In order to provide the reference for practical deployment of network services, this paper model or simulate on the communication service based on the P2P network. For the VoIP communication service, because the user numbers, user locations have the different impacts on the different registration ways, serving node functions and work process had been simulated and the reference can be presented with simulation figures on the basis of designing the registration and session scenarios. For the streaming service, because the service is more complicated than VoIP and the user behaviors are not fixed, the streaming service can be abstracted on the basis of analyzing the streaming service functional models in order to establish the mathematical models of the relations between the nodes scale and the media server and provides reference for deployment of the network nodes.