Efficient Soft Decoding of Raptor Codes for Satellite Broadcasting System
M. Zhang, S. Kim
Available Online June 2015.
- 10.2991/cisia-15.2015.32How to use a DOI?
- rateless codes; raptor codes; satellite broadcasting; DVB-S2; iterative decoding
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.
- © 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/).
Cite this article
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 -