Publications – Details
EXIT Chart Analysis of Turbo Decodulation
- Authors:
- Thorsten Clevorn, Johannes Brauers, Marc Adrat, and Peter Vary
- Book Title:
- Proceedings of IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)
- Volume:
- 2
- Venue:
- Berlin, Germany
- Date:
- Sept. 2005
- Pages:
- 711–715
- Language:
- English
Abstract
Turbo decodulation is the combination of iterative demodulation and iterative source-channel decoding to a single multiple turbo process. The receiver structures of bit-interleaved coded modulation with iterative decoding (BICM-ID), iterative source-channel decoding (ISCD), and iterative source coded modulation (ISCM) are merged to one novel turbo system, in which in two iterative loops reliability information is exchanged between the three single components, demodulator, channel decoder, and (softbit) source decoder. Simulations show quality improvements compared to the different previously known systems, which use iterative processing only for two components of the receiver. We propose the enhancement to turbo decodulation by an additional link for a direct supply of reliabilities from the softbit source decoder to the demodulator. We will demonstrate that using three-dimensional EXIT charts a convergence analysis of turbo decodulation similar to single turbo processes is possible.
Download of Publication
Copyright Notice
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
The following notice applies to all IEEE publications:
© IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.