Design of low-density parity-check codes for bandwidth efficient modulation

Published

Conference Paper

© 2001 IEEE. We design low-density parity-check (LDPC) codes for bandwidth efficient modulation using a multilevel coding (MLC) technique. We develop a method to analyze the asymptotic performance of the LDPC codes using message-passing decoding at each level of the MLC scheme as the codeword length goes to infinity. Simulation of very large block size LDPC codes verifies the accuracy of the analytical results. We jointly optimize the code rates and code parameters of the LDPC codes at each level of the MLC scheme, and the asymptotic performance of the optimized irregular LDPC codes is very close to the channel capacity of the additive white Gaussian noise (AWGN) channel.

Full Text

Duke Authors

Cited Authors

  • Hou, J; Siegel, PH; Milstein, LB; Pfister, HD

Published Date

  • January 1, 2001

Published In

  • Proceedings 2001 Ieee Information Theory Workshop, Itw 2001

Start / End Page

  • 24 - 26

International Standard Book Number 10 (ISBN-10)

  • 0780371194

International Standard Book Number 13 (ISBN-13)

  • 9780780371194

Digital Object Identifier (DOI)

  • 10.1109/ITW.2001.955124

Citation Source

  • Scopus