NDLI: Use of extrinsic information transfer chart to predict behavior of turbo codes

Content Provider	IEEE Xplore Digital Library
Author	Iliev, T. Lokshina, I. Radev, D.
Copyright Year	2009
Description	Author affiliation: Management, Marketing and Information Systems SUNY Oneonta, NY 13820, USA (Lokshina, I.) \|\| Communication Systems and Technologies, University of Rousse, 8 Studentska Str., 7017, Bulgaria (Iliev, T.; Radev, D.)
Abstract	In this paper, we consider turbo codes that are now introduced in various international standards, including the UMTS standard for third generation personal communications and the ETSI DVB-T standard for Terrestrial Digital Video Broadcasting, and review the method of extrinsic information transfer. The convergence properties of the iterative decoding process associated with a given turbo-coding scheme are assessed using the so-called extrinsic information transfer (EXIT) chart analysis technique. This approach provides an opportunity to foresee the bit error rate (BER) of a turbo code system using only the EXIT chart. It is shown that EXIT charts are powerful tools to analyze and optimize the convergence behavior of iterative systems utilizing the turbo principle, i.e., systems exchanging and refining extrinsic information. The idea is to consider the associated SISO stages as information processors that map input a priori LLR's onto output extrinsic LLR's, the information content being obviously assumed to increase from input to output, and introduce them to the design of turbo systems without the reliance on extensive simulation. Compared with existing methods for generating EXIT functions, a suggested approach provides insight into the iterative behavior of linear turbo systems with substantial reduction in numerical complexity.
Starting Page	1
Ending Page	4
File Size	976268
Page Count	4
File Format	PDF
ISBN	9781424425884
ISSN	19345070
DOI	10.1109/WTS.2009.5068930
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-04-22
Publisher Place	Czech Republic
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Bit error rate 3G mobile communication Turbo codes Telecommunication standards Code standards Iterative decoding Communication standards Digital video broadcasting Convergence Information analysis
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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