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Status:

PROPOSED STANDARD

Authors:

M. Watson
T. Stockhammer
M. Luby

Stream:

IETF

Source:

fecframe (tsv)

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DOI:  https://doi.org/10.17487/RFC6681

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Abstract

This document describes Fully-Specified Forward Error Correction(FEC) Schemes for the Raptor and RaptorQ codes and their applicationto reliable delivery of media streams in the context of the FECFramework. The Raptor and RaptorQ codes are systematic codes, wherea number of repair symbols are generated from a set of source symbolsand sent in one or more repair flows in addition to the sourcesymbols that are sent to the receiver(s) within a source flow. TheRaptor and RaptorQ codes offer close to optimal protection againstarbitrary packet losses at a low computational complexity. Six FECSchemes are defined: two for the protection of arbitrary packet flows,two that are optimized for small source blocks, and two for theprotection of a single flow that already contains a sequence number.Repair data may be sent over arbitrary datagram transport (e.g., UDP)or using RTP. [STANDARDS-TRACK]

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.