Forward Error Correction (FEC) Framework Extension to Convolutional Codes
draft-roca-tsvwg-fecframev2-03

Document Type Active Internet-Draft (individual)
Last updated 2017-02-24
Stream (None)
Intended RFC status (None)
Formats plain text xml pdf html bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
TSVWG                                                            V. Roca
Internet-Draft                                                     INRIA
Intended status: Standards Track                                A. Begen
Expires: August 28, 2017                                 Networked Media
                                                       February 24, 2017

  Forward Error Correction (FEC) Framework Extension to Convolutional
                                 Codes
                     draft-roca-tsvwg-fecframev2-03

Abstract

   RFC 6363 describes a framework for using Forward Error Correction
   (FEC) codes with applications in public and private IP networks to
   provide protection against packet loss.  The framework supports
   applying FEC to arbitrary packet flows over unreliable transport and
   is primarily intended for real-time, or streaming, media.  However
   FECFRAME as per RFC 6363 is restricted to block FEC codes.  The
   present document extends FECFRAME to support convolutional FEC Codes,
   based on a sliding encoding window, in addition to Block FEC Codes.
   This is done in a backward compatible way.  During multicast/
   broadcast real-time content delivery, these codes significantly
   improve robustness in harsh environments, with less repair traffic
   and lower FEC-related added latency.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on August 28, 2017.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Roca & Begen             Expires August 28, 2017                [Page 1]
Internet-Draft           FEC Framework Extension           February 2017

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definitions and Abbreviations . . . . . . . . . . . . . . . .   4
   3.  Architecture Overview . . . . . . . . . . . . . . . . . . . .   7
   4.  Procedural Overview . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  General . . . . . . . . . . . . . . . . . . . . . . . . .   7
     4.2.  Sender Operation with Convolutional FEC Codes . . . . . .   7
     4.3.  Receiver Operation with Convolutional FEC Codes . . . . .  10
   5.  Protocol Specification  . . . . . . . . . . . . . . . . . . .  12
     5.1.  General . . . . . . . . . . . . . . . . . . . . . . . . .  12
     5.2.  FEC Framework Configuration Information . . . . . . . . .  13
     5.3.  FEC Scheme Requirements . . . . . . . . . . . . . . . . .  13
   6.  Feedback  . . . . . . . . . . . . . . . . . . . . . . . . . .  13
   7.  Transport Protocols . . . . . . . . . . . . . . . . . . . . .  14
   8.  Congestion Control  . . . . . . . . . . . . . . . . . . . . .  14
   9.  Implementation Status . . . . . . . . . . . . . . . . . . . .  14
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  14
   11. Operations and Management Considerations  . . . . . . . . . .  15
   12. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
   13. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  15
   14. References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     14.1.  Normative References . . . . . . . . . . . . . . . . . .  15
     14.2.  Informative References . . . . . . . . . . . . . . . . .  15
   Appendix A.  About Sliding Encoding Window Management (non
                Normative) . . . . . . . . . . . . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18

1.  Introduction

   Many applications need to transport a continuous stream of packetized
Show full document text