Multimedia Proxy Caching for Video Streaming Applications
نویسنده
چکیده
This paper deals with the use of proxy servers to cache streaming video objects. In this paper, we describe a streaming architecture for layered video objects that uses the concept of layered caching. A new replacement policy is proposed, which is based on the playout time of a video object at the client. We define a new quality metric that takes the number of layers as well as the importance of each layer into consideration for quality measurements. Our simulation results compare the cache performance for different replacement policies and indicate the importance of playout time in the replacement scheme.
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