Title :
On the trade-off between rate and performance of expander codes on AWGN channels
Author :
Dihidar, Souvik ; McLaughlin, Steven W. ; Tetali, Prasad
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
27 June-2 July 2004
Abstract :
This paper estimates threshold values of the message-passing iterative decoder for expander codes on discrete-input additive white Gaussian noise (AWGN) channels. We give a new upper bound on the rate of these codes and argue that expander codes are good codes at high rates on this channel.
Keywords :
AWGN channels; Hamming codes; block codes; iterative decoding; linear codes; AWGN channel; discrete-input additive white Gaussian noise; expander codes; message-passing iterative decoder; AWGN channels; Additive white noise; Educational institutions; Eigenvalues and eigenfunctions; Electronic mail; Graph theory; Iterative decoding; Mathematics; Product codes; Upper bound;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365042
