Load Distribution Method and Admission control for Streaming Media QoS in Distributed Transcoding Servers

The recent advance in wireless network technologies has enabled the streaming media service on the mobile devices such as PDAs and cellular phones. Since the wireless network has low bandwidth channels and mobile devices are actually composed of limited hardware specifications, the transcoding technology is needed to adapt streaming media to the given mobile devices. When large scale mobile clients demand the streaming service, load distribution Methods among transcoding servers highly impact on the total number of QoS streams. In this paper, the resource weighted load distribution Method is proposed for the fair load distribution and the more scalable performance in distributed transcoding servers. Our proposed Method is based on the weight of resources consumed for transcoding to classified client grades and the maximum number of QoS streams actually measured in transcoding servers. The proposed policy is implemented on distributed transcoding system. In experiments, we evaluate its fair load distribution and scalable performance according to the increase of transcoding servers.

[1]  Irek Defée,et al.  Integrated system for multimedia delivery over broadband IP networks , 2002, 2002 Digest of Technical Papers. International Conference on Consumer Electronics (IEEE Cat. No.02CH37300).

[2]  Amin Vahdat,et al.  Differentiated multimedia Web services using quality aware transcoding , 2000, Proceedings IEEE INFOCOM 2000. Conference on Computer Communications. Nineteenth Annual Joint Conference of the IEEE Computer and Communications Societies (Cat. No.00CH37064).

[3]  Roy H. Campbell,et al.  Design and performance of MPEG video streaming to palmtop computers , 1999, Electronic Imaging.

[4]  Fang Chen,et al.  A cluster-based active router architecture supporting video/audio stream transcoding service , 2003, Proceedings International Parallel and Distributed Processing Symposium.

[5]  Gang Peng,et al.  Performance guarantees for cluster-based internet services , 2003, 23rd International Conference on Distributed Computing Systems, 2003. Proceedings..

[6]  Asit Dan,et al.  Multimedia servers: applications, environments, and design , 2000 .

[7]  David Hung-Chang Du,et al.  Scalable Server and Storage Architectures for Video Streaming , 1999, ICMCS, Vol. 1.

[8]  Takeshi Yoshimura,et al.  A system architecture for managing mobile streaming media services , 2003, 23rd International Conference on Distributed Computing Systems Workshops, 2003. Proceedings..

[9]  J. Duane Northcutt,et al.  The interactive performance of SLIM: a stateless, thin-client architecture , 1999, SOSP.