Name: draft-ietf-avt-uxp-07
Title: An RTP Payload Format for Erasure-Resilient Transmission of Progressive Multimedia Streams
State: Active
Authors: Guenther Liebl
Group: Audio/Video Transport (avt)
Date: 2004-10-26
This document specifies an efficient way to ensure erasure- resilient
transmission of progressively encoded multimedia sources via RTP using
Reed-Solomon (RS) codes together with interleaving. The level of erasure
protection can be explicitly adapted to the importance of the respective
parts in the source stream, thus allowing a graceful degradation of
application quality with increasing packet loss rate on the network. Hence,
this type of unequal erasure protection (UXP) schemes is intended to cope
with the rapidly varying channel conditions on wireless access links to the
Internet backbone. Furthermore, protection of non-progressive multimedia
streams is ensured, since equal erasure protection (EXP) represents a
subset of generic UXP. By applying interleaving and RS codes a payload
format is defined, which can be easily integrated into the existing
framework for RTP.
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