The Design And Implementation Of Coexistence Simulation Platform In Heterogeneous Wireless Networks

With the development of wireless networks, a wide range of network standards had been established.The network building and network terminal also show a variety of characteristics and trends. If there is no interconnection between these heterogeneous network,it will produce many isolated islands of information in the future of the information age. Therefore, how to achieve such a wide variety of different network seamlessly connected, which is the integration of heterogeneous network, is the inevitable trend of future network development. In this background, in order to complete the feasibility study on the integration of heterogeneous networks as soon as possible, the main task is to build a coexist simulation platform. Designing the platform of existing systems network fusion will meet the needs of laying the foundation for future research on coexistence between other systems.The paper is mainly based on the background of heterogeneous network integration.Through research and study,get a understanding of key technology of TD-SCDMA<E&WLAN system,understand the technical realization,design the architecture framework of system level coexistence platform in a heterogeneous network fusion scene,build a heterogeneous network simulation scenarios coexist simulation platform located in different frequency bands for TD-SCDMA<E&WLAN system. Using the simulation platform, we can simulate the actual system, and also we can add heterogeneous network integration module to simulate the network convergence.The paper is divided into six chapters. The chapter1gives the background and significance. The chapter2discusses the overview of the development of heterogeneous network system, and give a simple description of the purpose and methods for system-level simulation. Chapter3gives a heterogeneous network convergence conditions in the system-level coexistence simulation platform architecture design.,which take TD-SCDMA<E&WLAN coexistence system for example.Chapter4realize the simulation platform architecture of the the coexistence system being designed in Chapter3,mainly through modular design method to build system-level heterogeneous network convergence coexist simulation platform. Chapter5does the actual simulation analysis of coexist system-level simulation platform. Chapter6is summary and outlook.