White Papers

On the Scalability of an Image Transcoding Proxy Server

Category: Software and Web Development, Networking and Communications

Overview Image transcoding proxies are used to improve Web browsing over low bandwidth networks by adapting content-rich web images to bandwidth-constrained clients. Such transcoding proxies dynamically analyze, manipulate and transcode images (e.g. quality reduction, down sampling) on the fly enabling significant reductions in download times over low bandwidth links. However, transcoding proxies have scalability problems if the objective policy that decides whether to transcode an image does not take the client load (e.g. number of concurrent clients) into consideration. The paper shows that seemingly intuitive policies that make decisions solely based on whether transcoding yields savings in transmission time fail to scale.

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Publisher: Polytechnic University
File Format: PDF
Date Published: Dec 24, 2008
Format: White Papers
Topics: Proxy Servers, Programming Languages, Scalability

Polytechnic University White Papers

Information Flow Based Routing Algorithms for Wireless Sensor Networks

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