EECS 290Q: Project Abstracts
Renegotiated Transmission of Scalable Video
Because of the varying amount of spatial and temporal correlations
among video frames, constant quality video sources are necessarily
variable bit rate. Furthermore, these VBR sources often exhibit
burstiness in multiple time scales. To transport these sources
using a simple CBR approach, one could set the drain rate close to
the peak rate, resulting in poor network utilization, or one could
set the drain rate close to the mean rate, requiring large buffers
to reduce the probability of buffer overflow.
A renegotiated scheme enables the sources to temporarily increase
their service rates, effectively reducing the need for large buffers.
The project aims to compare and evaluate the performance of renegotiated
schemes to pure CBR schemes as well as some of its variants. Layered
coded video sources are used so that actual video could be reconstructed
even when loss do occur.
UCB Networking / Matt Siler firstname.lastname@example.org/ April 19, 1996