P2p-based Video Conferencing Systems

The rate of transmission of information has always been right in all aspects of human life plays a huge impact. In the 21st century face of fast-paced today's work and life, people have the means of communication are increasingly high requirements. Video call, video conferencing systems and then also came into being.As the video processing and network technology limitations, the early video conferencing systems there are many inadequate, such as CPU, memory, network bandwidth limited resources, when a large number of users increased, the amount of data increases, the quality of audio and video will appear was experiencing a downward trend.Then with the rapid development of P2P technology, and related technologies mature, to the video conferencing system has brought about good opportunities for development. After a detailed analysis of P2P after it with the existing video conferencing technology used bonding, presents a P2P-based video conferencing systems and communication technologies.In this paper, P2P and video conferencing systems as a starting point the basic concepts, analysis of the P2P network technology and its technical characteristics of the origin of the status quo, but also on key technologies for video conferencing system, conducted in-depth study. Liaohe Oil Field Company then conducted a systematic organizational structure requirements and reliability analysis. Finally the system uses the central directory server P2P model, to organize the network. Most of central server design is based on B / S of the user management and session management system, a small part of the function used to help Peer to complete the communication. The conference audio and video streaming media data from the various communication nodes to complete their own so that you can greatly reduce the pressure on the central server. Adaptive through the use of bandwidth and other related technology to design a set of optimized bandwidth programs in order to achieve greater clarity in the video transmission fluid. Finally the use of Visual C, Ext and other development languages to develop a system model.