Title :
On the design of raptor codes for binary-input gaussian channels
Author :
Cheng, Zhong ; Castura, Jeff ; Mao, Yongyi
Author_Institution :
Sch. of Inf. Technol. & Eng. (SITE), Univ. of Ottawa, Ottawa, ON, Canada
Abstract :
This paper studies the problem of Raptor-code design for binary-input AWGN (BIAWGN) channels using the mean-LLR-EXIT chart approach presented. We report that there exist situations where such a design approach may fail or fail to produce capacity-achieving codes, for certain ranges of channel SNR. Suggestions and discussions are provided pertaining to the design of Raptor codes for BIAWGN channels using the mean-LLR-EXIT chart.
Keywords :
AWGN channels; binary codes; BIAWGN channels; Raptor code design; binary-input AWGN channels; mean-LLR-EXIT chart approach; AWGN channels; Additive white noise; Decoding; Fading; Gaussian channels; Gaussian noise; Helium; Parity check codes; Relays; Uncertainty; Raptor code, BIAWGN channels, EXIT chart;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOMM.2009.11.070095
