EXIT charts for system design and analysis

El-Hajjar, Mohammed and Hanzo, Lajos (2013) EXIT charts for system design and analysis IEEE Communications Surveys & Tutorials


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Near-capacity performance may be achieved with the aid of iterative decoding, where extrinsic soft information is exchanged between the constituent decoders in order to improve the attainable system performance. Extrinsic information Transfer (EXIT) charts constitute a powerful semi-analytical tool used for analysing and designing iteratively decoded systems. In this tutorial, we commence by providing a rudimentary overview of the iterative decoding principle and the concept of soft information exchange. We then elaborate on the concept of EXIT charts using three iteratively decoded prototype systems as design examples. We conclude by illustrating further applications of EXIT charts, including near-capacity designs, the concept of irregular codes and the design of modulation schemes.

Item Type: Article
Related URLs:
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Organisations: Southampton Wireless Group
ePrint ID: 352320
Date :
Date Event
2013Accepted/In Press
Date Deposited: 09 May 2013 12:02
Last Modified: 17 Apr 2017 15:33
Further Information:Google Scholar
URI: http://eprints.soton.ac.uk/id/eprint/352320

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