HeterogeneousNetworkbyMulticast.PDF

Meng Project (May,1999) Reliable Video on Demand Services over Heterogeneous Network by Multicast. Ming Lu Computer science, cornell university Abstract Background High level view of the project What to achieve How it’s done Simple system view Detailed system view Detailed system component description Registration Video Multicast Video Encoding Srmlib 2.0 Coding structure Acknowledgment References Abstract : This project is a demo of Video on Demand service over Heterogeneous network. A system includes registration and video server, video client is completed. The key to the project is using layered encoding/decoding scheme and multi-channel multicast to cope with the different bandwidth of the client network. Two kind of encoding scheme are supported while one of them is invented to achieve real-time performance. Two kinds of video server, real-time video server and MPEG video server are supported. Background: As the result of deregulation, traditional phone networks, cable networks as well as data networks are merging. Thus to provide service to all potential customs who might have phone access, cable access or fiber access, etc, it’s necessary for the application to cope with the different bandwidth, different error rate, etc. of the client network. On the other hand, video on demand service, will be the next level of service beyond today’s pay per view which customs can only order the several videos available and customs have no direct control of when the video will be shown. Video on demand service will provide customs the freedom to view whatever they want at the time of their convenience. Video on demand will benefit not only entertainment, but also education, business, etc. In this project, multicast will be used to achieve better bandwidth and srm2.0