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Combining ALM and customized codecs in
improving video streaming

Abstract—Streaming media and IPTV are two
emerging technologies that promise to bring high
quality video signals to the end user. IPTV is likely
to use application layer multicast to distribute the
video to different users interested in the same content.
Though much work has been done on application layer
multicast and how the receivers organize themselves in
a tree structure, not much prior work has been done on
the interaction between video codecs and application
layer multicast trees.
In this paper we are going to study the interaction
of videocodecs with application layer multicast trees.
First, we study the effect of the codec parameters on
the quality of the video signal that the end user experiences.
Second, based on the result of the comparision,
we study how reorganization of the tree structure can
improve the end user experience. To evaluate end user
experience we use the PSNR metric.......

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Approximate Word Count: 3247
Approximate Pages: 13 (250 words per double-spaced page)

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