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Work
Conclusion
In this paper we have proposed new techniques to analyze the effectiveness
of adaptive playout for preventing buffer underflow. We broke our analysis
into three scenarios: A short clip transmitted at the maximum bandwidth
of the channel, a long program transmitted at the maximum bandwidth of
the channel, and a long program transmitted at 90 % of the available bandwidth,
leaving room for retransmissions. We have found that if our analysis is
verified by simulation experiments for the first two scenarios. For the
third scenario we have found that as yet our results are inconclusive.
Finally we note that for short clips, the analysis will not hold if
the duration of the clip is small compared to the mean durations of the
good and bad channel states. We have suggested a means to adjust the buffer
analysis for this case and suggest future work on that topic.
Mark Kalman
Tue Mar 13 05:01:37 PST 2001