Sliding Window Random Linear Code (RLC) Forward Erasure Correction (FEC) Schemes for QUIC
draft-roca-nwcrg-rlc-fec-scheme-for-quic-00

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nwcrg                                                            V. Roca
Internet-Draft                                                     INRIA
Intended status: Informational                                  I. Swett
Expires: December 23, 2018                                        Google
                                                          M-J. Montpetit
                                                          Triangle Video
                                                           June 21, 2018

Sliding Window Random Linear Code (RLC) Forward Erasure Correction (FEC)
                            Schemes for QUIC
              draft-roca-nwcrg-rlc-fec-scheme-for-quic-00

Abstract

   This document specifies Sliding Window Random Linear Code (RLC)
   Forward Erasure Correction (FEC) Schemes for the QUIC transport
   protocol, in order to recover from packet losses.

Status of This Memo

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   This Internet-Draft will expire on December 23, 2018.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   include Simplified BSD License text as described in Section 4.e of

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   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 . . . . . . . . . . . . . . . .   3
   3.  Procedures  . . . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Source Symbols Mapping  . . . . . . . . . . . . . . . . .   3
     3.2.  Pseudo-Random Number Generator (PRNG) . . . . . . . . . .   4
     3.3.  Coding Coefficients Generation Function . . . . . . . . .   4
   4.  Sliding Window RLC FEC Scheme over GF(2^^8) when Protecting a
       Single QUIC Stream  . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  Formats and Codes . . . . . . . . . . . . . . . . . . . .   4
       4.1.1.  Configuration Information . . . . . . . . . . . . . .   4
       4.1.2.  REPAIR Frame Format . . . . . . . . . . . . . . . . .   5
       4.1.3.  Additional Procedures . . . . . . . . . . . . . . . .   6
     4.2.  FEC Code Specification  . . . . . . . . . . . . . . . . .   6
       4.2.1.  Encoding Side . . . . . . . . . . . . . . . . . . . .   6
       4.2.2.  Decoding Side . . . . . . . . . . . . . . . . . . . .   6
   5.  Sliding Window RLC FEC Scheme over GF(2^^8) when Protecting
       Several QUIC Streams  . . . . . . . . . . . . . . . . . . . .   6
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   8.  Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .   7
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .   7
     9.2.  Informative References  . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   QUIC [QUIC-transport] is a new transport that aims at improving
   network performance by enabling out of order delivery, partial
   reliability, and methods of recovery besides retransmission, while
   also improving security.  This document specifies FEC schemes for
   Sliding Window Random Linear Code (RLC) [RLC] to recover from lost
   packets within a single QUIC stream or across several QUIC streams,
   compliant with the FEC coding framework for QUIC [Coding4QUIC].

   The ability to add FEC coding in QUIC may be beneficial in several
   situations:

   o  for a robust transmission of latency sensitive traffic, for
      instance real-time flows, since it enables to recover packet
      losses independently of the round trip time;

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