A hybrid FEC-ARQ protocol for low-delay lossless sequential data streaming

Interactive Internet Applications that rely on sequential

streams for lossless data exchange often use retransmission

protocols (e.g. TCP) for reliability and the guarantee of sequential

data ordering. More so than for bulk file transfer or

media delivery, lossless sequential streaming poses an even

greater challenge for the common problem cases of retransmission

protocols, such as lossy links or long network paths,

manifesting as significant latency in the interactive user experience.

We propose a hybrid FEC-ARQ protocol built on a

packet streaming code that reduces to a simple strategy over

sending or resending original data packets or check packets

combining undecoded packets, based on actual network conditions.

Experimental results show that our proposed protocol

can significantly improve the total delay over retransmission

and other schemes that use FEC, under a range of bandwidth

and loss scenarios.

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In  2009 IEEE International Conference on Multimedia and Expo

Publisher  IEEE
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