Summary: A Comparison of Layering and Stream Replication Video
Multicast Schemes \Lambda
Taehyun Kim and Mostafa H. Ammar
Networking and Telecommunications Group
Georgia Institute of Technology
Atlanta, GA 30332
ftkim, ammarg@cc.gatech.edu
ABSTRACT
The heterogeneity of the Internet's transmission resources
and end system capability makes it difficult to agree on ac­
ceptable traffic characteristics among the multiple receivers
of a multicast video stream. Three basic approaches have
been proposed to deal with this problem: 1) multicasting of
replicated video streams at different rates, 2) multicasting
the video encoded in cumulative layers, and 3) multicasting
the video encoded in non­cumulative layers. Even though
there is a common belief that the layering approach is bet­
ter than the replicated stream approach, there has been no
studies that compare these schemes. This paper is devoted
to such a systematic comparison. Our starting point is an

Source: Ammar, Mostafa - College of Computing, Georgia Institute of Technology

Collections: Computer Technologies and Information Sciences