An adaptive video multicast scheme for varying workloads. Kien A.Hua, JungHwan Oh, Khanh Vu Multimedia Systems, Springer-Verlag 2002. Outline. Introduction Related Work Proposed Approach Performance Model Performance Conclusion. Introduction.
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Kien A.Hua, JungHwan Oh, Khanh Vu
Multimedia Systems, Springer-Verlag 2002
5 min buffer
Apply aforementioned series function => segment size = 10.4 !!
0.5 min latency
Fair , maybe bad throughput
Better throughput, maybe not fair
Still not fair, because not average waiting time !!
“Largest aggregated waiting time first scheme” (LAW)
: the arrival time of the jth request for video i
c : the current timeLAW
Compute the sum of video i service latency
avg. playback rate 1.5 Mbits/sec.
LAW perform slightly
better than MFQ
in service latency,
throughput, defection rate
Arrival rate : 8 req/min
Skew factor : 0.3