Study and Design of Scalable Multimedia Service System

In recent years, with the continuous advancement of multimedia technology and network technology, network-based applications are increasing day by day, both in scale number users. However, randomness, time-varying, complexity user behavior make it impossible to guarantee service quality (bandwidth, delay, etc.) services, thus making difficult meet demands growing users for services. While meeting application requirements, how design develop a scalable system has become one key issues support good services better addition, surge demand comes various challenges. High-definition smooth require stable bandwidth. behaviors states usually It is practical significance study overcome these problems, also hotspot current research. This paper mainly discusses extensibility elements puts forward relationship between some principles extensibility. order influence random variation wireless channel on video playback, this adopts coding technology. That is, through analysis playback process, underflow probability proposed defined, thereby establishing constrained optimization problem. Finally, proposes adaptive transmission do optimization.