Institute for Communication Technologies and Embedded Systems

Convergence Analysis of Code-Aided Channel Estimation by Means of Transfer Charts

Authors:
Godtmann, S. ,  Ispas, A. ,  Ascheid, G.
Book Title:
Proc. Int. Symp. on Turbo Codes and Related Topics
Address:
Lausanne, Switzerland
Date:
Sep. 2008
DOI:
10.1109/TURBOCODING.2008.4658719
Language:
English
Abstract:
In this paper, we investigate the convergence behavior of code-aided channel estimation, also denoted as joint iterative channel estimation and decoding. A mutual information transfer chart is introduced in order to trace the information exchange between channel estimator and decoder throughout the iterative process.
Furthermore, a heuristic concept to improve code-aided channel estimation is introduced that outperforms the classical concepts and has the major advantage that it allows for accurate convergence analysis.
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