Efficient Soft Decoding of Raptor Codes for Satellite Broadcasting System

DOI

10.2991/cisia-15.2015.32How to use a DOI?

Keywords

rateless codes; raptor codes; satellite broadcasting; DVB-S2; iterative decoding

Abstract

In this paper, we propose an efficient soft iterative decoding method for raptor codes, which are customized for satellite broadcasting systems. The raptor codes presented in this paper are composed of a systematic LDPC code concatenated with another systematic Luby transform (LT) code. The outer codes are DVB-S2 and DVB-S2X defined forward error correction codes for interactive satellite broadcasting systems. For efficient soft decoding of the raptor codes, we represent both of the component codes with the same graph structure. Based on the Tanner graph drawn in terms of bit nodes and check nodes for each component code, we present an efficient joint iterative soft decoding method with a parallel process.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - M. Zhang
AU  - S. Kim
PY  - 2015/06
DA  - 2015/06
TI  - Efficient Soft Decoding of Raptor Codes for Satellite Broadcasting System
BT  - Proceedings of the International Conference on Computer Information Systems and Industrial Applications
PB  - Atlantis Press
SP  - 122
EP  - 124
SN  - 2352-538X
UR  - https://doi.org/10.2991/cisia-15.2015.32
DO  - 10.2991/cisia-15.2015.32
ID  - Zhang2015/06
ER  -