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SIGMETRICS 2001 / Performance 2001Periodic Broadcast and Patching Services - Implementation, Measurement, and Analysis in an Internet Streaming Video Testbed |
| Authors |
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Michael K. Bradshaw Dept. of Computer Science, University of Massachusetts, Amherst
Bing Wang
Subhabrata Sen
Lixin Gao
Jim Kurose
Prashant Shenoy
Don Towsley |
| Abstract |
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Multimedia streaming applications consume a significant amount of
server and network resources due to the high bandwidth and long
durations of audio and video clips. "Patching" and "Periodic
Broadcast" schemes use multicast transmission and client buffering in
innovative ways to reduce server and network resource use. Current
research in this area has focussed on the theoretical aspects of these
approaches, rather than on the challenges involved in implementing and
deploying such scalable video transmission services.
In this paper we report on the implementation, measurement, and analysis of a working video server testbed implementing both periodic broadcast and patching algorithms. We explore and present solutions to the system and network issues involved in actually implementing these services. Using this testbed, we conduct extensive experimental evaluations, measuring performance both at the server as well as end-end performance at the client, and present key insights gained from our implementation and experimental evaluations. |