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SIGMETRICS 2001 / Performance 2001

Periodic Broadcast and Patching Services - Implementation, Measurement, and Analysis in an Internet Streaming Video Testbed

Authors
Michael K. Bradshaw
Dept. of Computer Science, University of Massachusetts, Amherst

Bing Wang
Dept. of Computer Science, University of Massachusetts, Amherst

Subhabrata Sen
Dept. of Computer Science, University of Massachusetts, Amherst

Lixin Gao
Dept. of Electrical and Computer Engineering, University of Massachusetts, Amherst

Jim Kurose
Dept. of Computer Science, University of Massachusetts, Amherst

Prashant Shenoy
Dept. of Computer Science, University of Massachusetts, Amherst

Don Towsley
Dept. of Computer Science, University of Massachusetts, Amherst
 

Abstract
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.


[Last updated Fri Mar 23 2001]