Summary
2011 International Symposium on Nonlinear Theory and Its Applications
2011
Session Number:B4L-A
Session:
Number:B4L-A3
Scale-free LT Codes and Its Performance on BEC Channels
Zhiliang ZHU, Yuli ZHAO, Francis C.M. LAU, Hai YU,
pp.515-518
Publication Date:2011/9/4
Online ISSN:2188-5079
Summary:
The degree distribution of the encoded symbols plays a crucial role in the design of a LT code ? a type of channel codes. It affects the encoding and decoding cost/complexity as well as the error performance of the code. In this paper, we apply the shortest "average-pathlength" property of scale-free networks to the construction of LT codes. In a "scale-free" LT code, the encoded symbols will follow a modified power-law degree distribution. We will also compare the characteristics and decoding performance of "scale-free" LT codes with traditional LT code constructed with robust soliton distributions.