An improved bit-interleaved turbo-coded modulation scheme using constellation shaping and iterative decoding

Stephane Y. Le Goff, Boon Kien Khoo, Charalampos C. Tsimenidis, Bayan S. Sharif

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

We present an improved version of the bit-interleaved turbo-coded modulation (BITCM) scheme with constellation shaping originally introduced in [3]. Simulation results carried out on a 3-bit/dim 16-PAM BITCM indicate that, by implementing an iterative decoding algorithm at the receiver side, it is possible to obtain shaping gains almost equal to 0.8 dB, which is very close to the maximal achievable values predicted by theory. It is also shown that, in most practical cases, tthe receiver structure can be simplified by removing the demapper from the iterative decoding loop, without any performance detgradation.

Original languageBritish English
Title of host publicationTurbo Codes and Related Topics; 6th International ITG-Conference on Source and Channel Coding (TURBOCODING), 2006 4th International Symposium on
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9783800729470
StatePublished - 2006
Event6th International ITG-Conference on Source and Channel Coding and 2006 4th International Symposium on Turbo Codes and Related Topics, TURBOCODING 2006 - Munich, Germany
Duration: 3 Apr 20067 Apr 2006

Publication series

NameTurbo Codes and Related Topics; 6th International ITG-Conference on Source and Channel Coding (TURBOCODING), 2006 4th International Symposium on

Conference

Conference6th International ITG-Conference on Source and Channel Coding and 2006 4th International Symposium on Turbo Codes and Related Topics, TURBOCODING 2006
Country/TerritoryGermany
CityMunich
Period3/04/067/04/06

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