Title :
Raptor codes on symmetric channels
Author :
Etesami, Omid ; Molkaraie, Mehdi ; Shokrollahi, Amin
Author_Institution :
Sharif Univ. of Technol., Tehran, Iran
fDate :
27 June-2 July 2004
Abstract :
This paper extends the construction and analysis of Raptor codes originally designed in A. Shokrollahi (2004) for the erasure channel to general symmetric channels. We explicitly calculate the asymptotic fraction of output nodes of degree one and two for capacity-achieving Raptor codes, and discuss techniques to optimize the output degree distribution.
Keywords :
Gaussian processes; channel capacity; channel coding; optimisation; Raptor codes; asymptotic fraction; belief propagation algorithm; erasure channel; optimisation; output degree distribution; output nodes; symmetric channels; AWGN channels; Additive white noise; Belief propagation; Capacity planning; Channel capacity; Decoding; Error probability; H infinity control; Probability distribution; Sampling methods;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365076
