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Low Density Parity Check (LDPC) Staircase and Triangle Forward Error Correction (FEC) Schemes (RFC5170)

IP.com Disclosure Number: IPCOM000171501D
Original Publication Date: 2008-Jun-01
Included in the Prior Art Database: 2008-Jun-12
Document File: 34 page(s) / 69K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

V. Roca: AUTHOR [+3]

Abstract

This document describes two Fully-Specified Forward Error Correction (FEC) Schemes, Low Density Parity Check (LDPC) Staircase and LDPC Triangle, and their application to the reliable delivery of data objects on the packet erasure channel (i.e., a communication path where packets are either received without any corruption or discarded during transmission). These systematic FEC codes belong to the well- known class of "Low Density Parity Check" codes, and are large block FEC codes in the sense of RFC 3453.

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Network Working Group                                            V. Roca Request for Comments: 5170                                         INRIA Category: Standards Track                                     C. Neumann                                                                  Thomson                                                               D. Furodet                                                       STMicroelectronics                                                                June 2008

          Low Density Parity Check (LDPC) Staircase and Triangle                  Forward Error Correction (FEC) Schemes

Status of This Memo

   This document specifies an Internet standards track protocol for the    Internet community, and requests discussion and suggestions for    improvements.  Please refer to the current edition of the "Internet    Official Protocol Standards" (STD 1) for the standardization state    and status of this protocol.  Distribution of this memo is unlimited.

Abstract

   This document describes two Fully-Specified Forward Error Correction    (FEC) Schemes, Low Density Parity Check (LDPC) Staircase and LDPC    Triangle, and their application to the reliable delivery of data    objects on the packet erasure channel (i.e., a communication path    where packets are either received without any corruption or discarded    during transmission).  These systematic FEC codes belong to the well-    known class of "Low Density Parity Check" codes, and are large block    FEC codes in the sense of RFC 3453.

Roca, et al.                Standards Track                     [Page 1]
 RFC 5170            LDPC Staircase and Triangle FEC            June 2008

 Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3

   2.  Requirements Notation  . . . . . . . . . . . . . . . . . . . .  3

   3.  Definitions, Notations, and Abbreviations  . . . . . . . . . .  3

     3.1.  Definitions  . . . . . . . . . . . . . . . . . . . . . . .  3

     3.2.  Notations  . . . . . . . . . . . . . . . . . . . . . . . .  4

     3.3.  Abbreviations  . . . . . . . . . . . . . . . . . . . . . .  5

   4.  Formats and Codes  . . . . . . . . . . . . . . . . . . . . . .  6

     4.1.  FEC Payload IDs  . . . . . . . . . . . . . . . . . . . . .  6

     4.2.  FEC Object Transmission Information  . . . . . . . . . . .  6

       4.2.1.  Mandatory E...