Title :
On the Design of Raptor Codes for Binary-Input Gaussian Channels
Author :
Zhong Cheng ; Castura, J. ; Yongyi Mao
Author_Institution :
Univ. of Ottawa, Ottawa
Abstract :
This paper studies the problem of Raptor-code design for binary-input AWGN (BIAWGN) channels using the mean-LLR-EXIT chart approach presented in [1]. 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; encoding; Raptor codes; Raptor-code design; binary-input AWGN channels; binary-input Gaussian channels; capacity-achieving codes; mean-LLR-EXIT chart approach; AWGN channels; Additive white noise; Decoding; Fading; Gaussian channels; Gaussian noise; Parity check codes; Relays; Signal processing; Uncertainty;
Conference_Titel :
Information Theory, 2007. ISIT 2007. IEEE International Symposium on
Conference_Location :
Nice
Print_ISBN :
978-1-4244-1397-3
DOI :
10.1109/ISIT.2007.4557093
