Authors: Sang Woo Han JuWon Park JongWon Kim
Publish Date: 2009/05/05
Volume: 44, Issue: 1, Pages: 133-160
Abstract
Advanced collaboration environments are extensively utilized for distance learning escience and other distributed global collaboration events In such environments highquality and seamless media services play an important role in improving the quality of user experience to participants In this paper to support highquality mediabased services we design open media service architecture for advanced collaboration environments by combining the open interface for stateoftheart media tools the performance monitoring tools for devices and networks and applicationlevel adaptation schemes for media streaming By implementing the proposed architecture on top of an opensource Access Grid AG collaboration toolkit we verify that highquality collaboration among several collaboration sites can be effectively realized over a multicastenabled network testbed with improved media quality experienceWe would like to thank several members of KISTI supercomputing center ACE research team of GIST Networked Media Laboratory AG development team of Argonne National Laboratory and anonymous reviewers for their helpful suggestions This research was supported by the Ministry of Knowledge Economy Korea under the Information Technology Research Center support program supervised by the Institute of Information Technology Advancement grant number IITA2009C109009020006
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