DocumentCode
699477
Title
Exit charts for iteratively decoded multilevel modulation
Author
Schreckenbach, Frank ; Bauch, Gerhard
Author_Institution
Inst. for Commun. Eng. (LNT), Munich Univ. of Technol. (TUM), Munich, Germany
fYear
2004
fDate
6-10 Sept. 2004
Firstpage
1557
Lastpage
1560
Abstract
We investigate EXIT charts for the design and analysis of Bit-Interleaved Coded Modulation (BICM) with iterative decoding. Analytical expressions for EXIT functions of convolutional codes and mappings are derived. For the demapper, we show EXIT functions for different channel models and introduce bit-wise EXIT functions and a symbol-wise description. These functions are used in an optimization procedure to find new mappings.
Keywords
channel coding; convolutional codes; interleaved codes; iterative decoding; modulation coding; optimisation; BICM; bit-interleaved coded multilevel modulation; bit-wise EXIT chart; channel model; convolutional code; extrinsic information transfer chart; iterative decoding; optimization; symbol-wise description; Abstracts;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Conference, 2004 12th European
Conference_Location
Vienna
Print_ISBN
978-320-0001-65-7
Type
conf
Filename
7080007
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