Playback Quantity - based Proxy Caching Scheme for Continuous Media Data 


Vol. 9,  No. 3, pp. 303-310, Jun.  2002
10.3745/KIPSTB.2002.9.3.303


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  Abstract

In this paper, we propose a proxy caching scheme that stores a portion of a continuous media object or an entire object on the Internet. The proxy stores the initial fraction of a continuous media object and determines the optimal size of the initial fraction of the continuous media object to be cached based on the object popularity. Under the proposed scheme, the initial latency of most clients and the data transferred from a remote server can be reduced and limited cache storage space can be utilized efficiently. Considering the characteristics of continuous media, we also propose the novel popularity for the continuous media objects based on the amount of the data of each object played by the clients. Finally, we have performed trace-driven simulations to evaluate our caching scheme and the popularity for the continuous media objects. Through these simulations, we have verified that our caching scheme, PPC outperforms other well-known caching schemes in terms of BHR, DSR and replacement and that popularity for the continuous media objects based on the amount of the playback data can enhance the performance of caching scheme.

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[IEEE Style]

K. D. Chung, H. O. Hong, E. J. Lim, S. H. Park, "Playback Quantity - based Proxy Caching Scheme for Continuous Media Data," The KIPS Transactions:PartB , vol. 9, no. 3, pp. 303-310, 2002. DOI: 10.3745/KIPSTB.2002.9.3.303.

[ACM Style]

Ki Dong Chung, Hyeon Ok Hong, Eun Ji Lim, and Seong Ho Park. 2002. Playback Quantity - based Proxy Caching Scheme for Continuous Media Data. The KIPS Transactions:PartB , 9, 3, (2002), 303-310. DOI: 10.3745/KIPSTB.2002.9.3.303.

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