[nwcrg] draft-wang-tsvwg-sw-slc-fec-scheme-03.txt

[Ray Wang <[e-mail]>]

Dear tsvwg & nwcrg members,


We have submitted a draft to discuss Sliding Window Forward Error
Correction(FEC) in conjunction with Layered video coding.

Sliding window FEC has been adopted on our platform, and the video QoE
statistics in the production environment proved the advantage of sliding
window FEC over the block FEC scheme.

Layered encoding is also commonly used in video streaming applications to
provide appropriate video quality to end-users with various downlink
conditions and device capabilities.

When Sliding Window FEC works together with layered video coding, a
continuous encoding window as defined in RFC8681 may no longer be optimal,
our new draft combines sliding window FEC with source video coding and can
achieve a better video Quality of Experience.


Any comments and suggestions on this document are appreciated.


Best Regards

Ray


A new version of I-D, draft-wang-tsvwg-sw-slc-fec-scheme-03.txt
> has been successfully submitted by Bifeng He and posted to the
> IETF repository.
>
> Name:           draft-wang-tsvwg-sw-slc-fec-scheme
> Revision:       03
> Title:          Sliding Window Selective Linear Code (SLC) Forward Error
> Correction (FEC) Scheme for FECFRAME
> Document date:  2022-06-14
> Group:          Individual Submission
> Pages:          20
> URL:
> https://www.ietf.org/archive/id/draft-wang-tsvwg-sw-slc-fec-scheme-03.txt
> Status:
> https://datatracker.ietf.org/doc/draft-wang-tsvwg-sw-slc-fec-scheme/
> Html:
> https://www.ietf.org/archive/id/draft-wang-tsvwg-sw-slc-fec-scheme-03.html
> Htmlized:
> https://datatracker.ietf.org/doc/html/draft-wang-tsvwg-sw-slc-fec-scheme
>
> Abstract:
>    RFC8680 describes a framework for using Sliding Window Forward Error
>    Correction(FEC) codes to protection against packet loss, the
>    framework significantly improves FEC efficiency and reduces FEC-
>    related added latency compared to block FEC codes defined in RFC
>    6363.  RFC8681 further describes two fully specified FEC schemes for
>    Sliding Window Random Linear Codes(RLC), the schemes rely on an
>    encoding window that slides over a continuous set of source symbols,
>    generating new repair symbols whenever needed.  This document
>    describes a fully specified FEC scheme for Sliding Window Selective
>    Linear Code(SLC) over the Galois Field GF (2^^8) , compared to
>    RFC8681, this framework use a discrete encoding window which can
>    protect arbitrary media streams selectively, and has better recovery
>    performance in scenarios such as layered video coding or mixed
>    streams for video streaming applications.
>
>
> The IETF Secretariat
>