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| Content Provider | Springer Nature Link |
|---|---|
| Author | Chawathe, Yatin |
| Copyright Year | 2003 |
| Abstract | Internet broadcasting - the simultaneous distribution of live content streams to a large audience - has a number of interesting applications ranging from real-time broadcasts of audio/video streams for online concerts or sporting events to efficient and reliable large-scale software distribution. We identify three fundamental requirements for scalable broadcasting services: an efficient infrastructure for large-scale broadcasting, an ability to adapt the infrastructure to suit the requirements of a wide range of applications, and ease of deployment of the infrastructure. Although solutions such as the network-layer IP multicast approach and a slew of overlay distribution networks exist today, none of these technologies satisfactorily addresses all of the above concerns. In this paper, we argue that an application-customizable hybrid overlay is well suited to meet these challenges. To this end, we propose an architecture called scattercast that relies on a network of strategically located agents called ScatterCast proXies or SCXs. These agents collaboratively provide the broadcast service for a session. Clients locate a nearby SCX and tap into the session via that SCX. Scattercast constructs a hybrid overlay network composed of unicast links between SCXs that interconnect locally scoped multicast regions. Rather than define a single standardized service model for transmitting data on top of the overlay, scattercast builds a customizable transport framework that provides adaptability by leveraging application-defined semantics to drive the distribution of content. We demonstrate the ability of our architecture to provide efficient distribution via a set of simulation experiments. Finally, we present our experience with the adaptability of the framework by describing two applications, a real-time Internet radio and an online slide-presentation tool, both of which we have built on top of a prototype implementation of the architecture. |
| Starting Page | 104 |
| Ending Page | 118 |
| Page Count | 15 |
| File Format | |
| ISSN | 09424962 |
| Journal | Multimedia Systems |
| Volume Number | 9 |
| Issue Number | 1 |
| e-ISSN | 14321882 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2003-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Scattercast Overlay networks Application-layer multicast Content distribution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Computer Networks and Communications Information Systems Media Technology Hardware and Architecture Software |
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