Adaptive High-quality Video Service for Network-based Multi-party Collaboration 19 th Oct 2005 Sangwoo Han [email_address] Networked Media Lab., Dept. of Information and Communications Gwangju Institute of Science and Technology (GIST), Korea Graduate Workshop on Networking
If packet loss rate of each receiver is greater than a pre-defined loss threshold, the receiver suffers quality deterioration. By this simple principle, every receiver is classified into two nodes having overload or proper load.
Guide to rate control considering one-to-many video distribution
If the proportion overloaded nodes to total nodes is not less then the pre-defined threshold TH max , frame rate is reduces. If the proportion of loaded nodes to total nodes is not less than the pre-defined threshold TH min , the frame rate is increased.
Execution of adaptive transmission
The adaptation manager allows adapative video applications to regulate drop rate – 0%, 33%, and 50%, and the adaptive video applications control frame rate by frame dropping.
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Q & A High-quality video service on AG is available from http:// nm.gist.ac.kr/agdv