Title :
Advanced LT codes in satellite data broadcasting system
Author :
Zhu, Hongpeng ; Li, Guangxia ; Xie, Zhidong
Author_Institution :
Inst. of Commun. Eng., PLA Univ. of Sci. & Technol., Nanjing, China
Abstract :
The optimal degree distribution algorithm of LT codes of digital fountain was proposed, and its drawbacks in realization were mentioned. On the basis of optimal degree distribution, a practical suboptimal degree distribution algorithm was put forward. Through simulation, with respect to the channel efficiency in satellite data broadcasting system, advanced LT codes based on suboptimal degree distribution algorithm performed better than classical LT codes based on robust soliton degree distribution algorithm, RSE codes and that without packet level FEC technology. The conclusion of research is practically valuable in improving the channel efficiency of satellite data broadcasting system.
Keywords :
codes; direct broadcasting by satellite; LT codes; optimal degree distribution algorithm; satellite data broadcasting system; soliton degree distribution algorithm; Artificial satellites; Broadcast technology; Data engineering; Decoding; Error probability; Forward error correction; Protocols; Robustness; Satellite broadcasting; Solitons; LT codes; digital fountain; satellite broadcasting; sub-optimal degree distribution;
Conference_Titel :
Communication Systems, 2008. ICCS 2008. 11th IEEE Singapore International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-2423-8
Electronic_ISBN :
978-1-4244-2424-5
DOI :
10.1109/ICCS.2008.4737419
