Research On Access Selection Model Oriented To The Guarantee Of QoS Of Super-network

Recently, network technology and communication technology have developed rapidly,people obtain network resources through a variety of terminal equipment at any time andplace, so the importance of networking in all aspects of today’s society is highly concerned bypeople. However, at this stage different types of networks make the heterogeneity amongdifferent networks become more and more prominent, so how to provide QoS guarantee forusers in a heterogeneous network environment becomes a popular research. As for theproblem of access select between heterogeneous networks, this dissertation proposes adifferentiated service-based access selection algorithm to provide QoS guarantee for users.First, this dissertation analyses the situation of network development at this stage, andintegrate the development trend of the future network, then introduces the group proposedthe concept of super-network and state the QoS-related technology and network access, alsoanalyse the disadvantage of super-network about providing QoS guarantee.Then, this dissertation introduces the way to acquisition and processing for network data,including the design of the data acquisition, analysis and classification of the data, and usingthe dynamically adaptive method to integrate the acquired data.In addition, this dissertation designs the integrated assessment models of access options,introduce the model contained in the sub-module in detail, and highlights some sub-moduledesign as well as the operation process of the model.Finally, this dissertation extends the NS2network simulation software to design UMTSnetworks, WiMAX networks and WLAN network interconnection network scenariosaccording to the needs of the experiment, and verify the experiment of the differentiatedservices-based access selection algorithm about providing QoS guarantee.