Title :
On Raptor Code Design for Inactivation Decoding
Author :
Mahdaviani, Kaveh ; Ardakani, Masoud ; Tellambura, Chintha
Author_Institution :
Dept. of Elec. & Comp. Eng., Univ. of Alberta, Edmonton, AB, Canada
fDate :
9/1/2012 12:00:00 AM
Abstract :
Based on a new vision of the inactivation decoding process, we set a new degree distribution design criterion for the LT part of Raptor codes. Under an infinite block length assumption, a family of degree distributions that satisfy the new design criterion is analytically derived. The finite length performance of this family is investigated by using computer simulations and is shown to outperform the conventional design.
Keywords :
codes; decoding; transform coding; LT code; Luby transform code; Raptor code design; computer simulation; degree distribution design criterion; finite length performance; inactivation decoding process; infinite block length; Approximation methods; Digital video broadcasting; Encoding; Equations; Maximum likelihood decoding; Receivers; Finite length Raptor codes; Soliton distribution; inactivation decoding;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2012.072612.110143
