Network coding for satellite systems
draft-irtf-nwcrg-network-coding-satellites-09

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Last updated 2019-12-11
Replaces draft-kuhn-nwcrg-network-coding-satellites
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Internet Engineering Task Force                             N. Kuhn, Ed.
Internet-Draft                                                      CNES
Intended status: Informational                            E. Lochin, Ed.
Expires: June 13, 2020                                      ISAE-SUPAERO
                                                       December 11, 2019

                  Network coding for satellite systems
             draft-irtf-nwcrg-network-coding-satellites-09

Abstract

   This document is the product of the Coding for Efficient Network
   Communications Research Group (NWCRG).  It conforms to the directions
   found in the NWCRG taxonomy [RFC8406].  Thus, the scope of the
   document is network coding as a linear combination of packets in and
   above the network layer.  Physical and MAC layer coding are beyond
   the scope of the document.  The draft focuses on a multi-gateway
   satellite system and identifies the use-cases where network coding
   provides significant performance improvements.  The objective is to
   contribute to a larger deployment of network coding techniques in
   SATCOM to complement already implemented loss recovery mechanisms.
   The draft also identifies open research issues related to the
   deployment of network coding in SATCOM systems.

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 https://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 June 13, 2020.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Kuhn & Lochin             Expires June 13, 2020                 [Page 1]
Internet-Draft    Network coding for satellite systems     December 2019

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://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.  A Note on Satellite Networks Topology . . . . . . . . . . . .   3
   3.  Use-cases for Improving SATCOM System Performance Using
       Network Coding  . . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Two-way Relay Channel Mode  . . . . . . . . . . . . . . .   5
     3.2.  Reliable Multicast  . . . . . . . . . . . . . . . . . . .   5
     3.3.  Hybrid Access . . . . . . . . . . . . . . . . . . . . . .   6
     3.4.  LAN Packet Losses . . . . . . . . . . . . . . . . . . . .   7
     3.5.  Varying Channel Conditions  . . . . . . . . . . . . . . .   8
     3.6.  Improving Gateway Handover  . . . . . . . . . . . . . . .   8
   4.  Research Challenges . . . . . . . . . . . . . . . . . . . . .   9
     4.1.  Joint-use of Network Coding and Congestion Control in
           SATCOM Systems  . . . . . . . . . . . . . . . . . . . . .   9
     4.2.  Efficient Use of Satellite Resources  . . . . . . . . . .  10
     4.3.  Interaction with Virtualized Satellite Gateways and
           Terminals . . . . . . . . . . . . . . . . . . . . . . . .  10
     4.4.  Delay/Disruption Tolerant Networks  . . . . . . . . . . .  10
   5.  Conclusion  . . . . . . . . . . . . . . . . . . . . . . . . .  11
   6.  Glossary  . . . . . . . . . . . . . . . . . . . . . . . . . .  11
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  13
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   10. Informative References  . . . . . . . . . . . . . . . . . . .  13
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  15

1.  Introduction

   This document is the product of and represents the collaborative work
   and consensus of the Coding for Efficient Network Communications
   Research Group (NWCRG); while it is not an IETF product and not a
   standard it intends to inform the SATCOM and Internet research
   communities about recent developments in Network Coding.  A glossary
   is proposed in Section 6 to clarify the terminology use throughout
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