Research of Multipoint Real Stream Distribution P2P-SIP Architecture
To solve the problem of the deficiency of SIP (Session Initiation Protocol) for multipoint session,a design of SIP combined with P2P multipoint real time stream session mechanism is presented in this paper. To transmission the real time stream among the multipoint,new application layer multicast tree construction algorithm and real time stream distribution algorithm are put forward. In this application layer multicast tree,the two key factors of both bandwidth and delay in streaming media are taken into considered. The simulation and the experiments show that the design is practical and has a great improvement on the quality of real time service.