Guan Jianfeng

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This paper focuses on concurrent real-time multimedia group communication in wireless environment and proposes a video conferencing system to support multiparty streaming video communication on mobile devices. The proposed solution extends Session Initiation Protocol (SIP) to support multicast session negotiation and uses mobile multicast in IP layer for(More)
Some mobile multicast schemes have been proposed in the past few years, but most of them study the reconstruction of multicast delivery tree, but little consider the mobile group membership management. In this paper, we propose a new mobile multicast method based on Two-Hop Multicast Listener Discovery (THMLD) protocol which provides the mobile multicast(More)
Currently, Internet, adopting the TCP/IP suits, is an end-to-end architecture. TCP/IP is an open architecture, and its design principle only focuses on the efficiency of information transmission, while it does not consider the security issues. IPsec VPN has been proposed to solve the core network security issue. However, it is believed that the current use(More)
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