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RFC 6681
Title: Raptor Forward Error Correction (FEC)
Schemes for FECFRAME
Author: M. Watson, T. Stockhammer,
M. Luby
Status: Standards Track
Stream: IETF
Date: August 2012
Mailbox: watsonm@netflix.com,
stockhammer@nomor.de,
luby@qualcomm.com
Pages: 22
Characters: 46372
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-fecframe-raptor-11.txt
URL: http://www.rfc-editor.org/rfc/rfc6681.txt
This document describes Fully-Specified Forward Error Correction
(FEC) Schemes for the Raptor and RaptorQ codes and their application
to reliable delivery of media streams in the context of the FEC
Framework. The Raptor and RaptorQ codes are systematic codes, where
a number of repair symbols are generated from a set of source symbols
and sent in one or more repair flows in addition to the source
symbols that are sent to the receiver(s) within a source flow. The
Raptor and RaptorQ codes offer close to optimal protection against
arbitrary packet losses at a low computational complexity. Six FEC
Schemes are defined: two for the protection of arbitrary packet flows,
two that are optimized for small source blocks, and two for the
protection 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]
This document is a product of the FEC Framework Working Group of the IETF.
This is now a Proposed Standard Protocol.
STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements. Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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