| Publisher | Microsoft | ||
|---|---|---|---|
| Format | 172.2KB PDF | Date added | 22 Mar 2005 |
| Topics | Bandwidth Issues, Multicasting, Software Engineering | ||
| Downloads | 53 | ||
Recent advances in information theory show that the throughput of a multicast session can be improved using network coding. In overlay networks, the available bandwidth between sender and different receivers are different. This paper proposes a solution to improve the throughput of an overlay multicast session with heterogeneous receivers by organizing the receivers into layered data distribution meshes and sending substreams to each mesh using layered coding. The solutions utilize alternative paths and network coding in each mesh. The paper first formulates the problem into a mathematical programming, whose optimal solution requires global information. It therefore presents a distributed heuristic algorithm. The heuristic progressively organizes the receivers into layered meshes.
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