Efficient multicast data transfer with congestion control using dynamic source channels

Details Efficient multicast data transfer with congestion control using dynamic source channels Efficient multicast data transfer with congestion control using dynamic source channels

2010-04-27

arxiv.org/abs/1004.4809v1

Computer Science

Networking and Internet Architecture

Scientific paper

The most efficient receiver-driven multicast congestion control protocols use dynamic channels. This means that each group has a cyclic rate variation with a continuously decreasing phase. Despite promising results in terms of fairness, using efficiently these dynamic groups could be a challenging task for application programmers. This paper presents a sequencer which maps out application data to dynamic groups in an optimal way. Multiple applications such as file transfer or video streaming, can use this sequencer, thanks to a simple API usable with any buffer containing the most important data first. To evaluate this solution, we designed a file transfer software using a FEC encoding. Results show the sequencer optimal behavior and the file transfer efficiency, as a single download generates only little more overhead than TCP . Moreover, download time is almost independent of the number of receivers, and is already faster than TCP with 2 competing downloads.

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