This Article 
   
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
Multimedia Object Placement for Transparent Data Replication
February 2007 (vol. 18 no. 2)
pp. 212-224

Abstract—Transparent data replication is a promising technique for improving the system performance of a large distributed network. Transcoding is an important technology which adapts the same multimedia object to diverse mobile appliances; thus, users' requests for a specified version of a multimedia object could be served by a more detailed version cached according to transcoding. Therefore, it is particularly of theoretical and practical necessity to determine the proper version to be cached at each node such that the specified objective is achieved. In this paper, we address the problem of multimedia object placement for transparent data replication. The performance objective is to minimize the total access cost by considering both transmission cost and transcoding cost. We present optimal solutions for different cases for this problem. The performance of the proposed solutions is evaluated with a set of carefully designed simulation experiments for various performance metrics over a wide range of system parameters. The simulation results show that our solution consistently and significantly outperforms comparison solutions in terms of all the performance metrics considered.

Index Terms:
Web caching, multimedia, object placement, transcoding, transparent data access, optimization.
Citation:
Keqiu Li, Hong Shen, Francis Y.L. Chin, Weishi Zhang, "Multimedia Object Placement for Transparent Data Replication," IEEE Transactions on Parallel and Distributed Systems, vol. 18, no. 2, pp. 212-224, Feb. 2007, doi:10.1109/TPDS.2007.29
Usage of this product signifies your acceptance of the Terms of Use.