Design And Implementatation Of Heterogeneous Network Convergence

Heterogeneous network is to connect the different communication modes together, to achieve interoperability between the different communication equipments, which using the complementary nature of many networks to provide users with convenient access security mechanisms and better service properties. the fast development of Current wireless broadband communications technology,the business diversity and the growing demand for personalized decision decide that heterogeneous network-related technology has a high significance of application .This thesis describes an architecture of heterogeneous network convergence based on overall IP core network,which integrates different networks,such as cellular network,WLAN,UWB,Bluetooth and Internet. The hardware and software scheme of network-related mode-aware module, Multi-Mode Wireless Access Server (MMWAS), routing and QoS guarantee is presented. Finally, the communication platform based the architecture, which is made of network devices, multi-mode terminals and MMWAS, is introduced. Test and verification show that SMS, voice and file communications can be realized between terminals with different wireless communication modes.This paper first introduces the features and developing status of the integration of heterogeneous networks, and then analysis the current several heterogeneous networks architecture: IP-based integration framework for heterogeneous wireless networks, The network architecture combined by TD-SCDMA and WiMAX, heterogeneous wireless networks based on The structure of MESH. And then we proposed a new systems integration of heterogeneous networks combined with the wireless sensing technology, wireless mesh network technology and soft switching technology. Then we research and design the key details of the heterogeneous networks architecture, and then we research and design key technologies such as the registration and query process simulation, design for perception modules, Research of SIP traversal NAT, .Finally we build verification platform for this heterogeneous networks.