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BER Prediction Using EXIT Charts for BICM with Iterative Decoding

Authors:

Thorsten Clevorn, Susanne Godtmann, and Peter Vary

Journal:

IEEE Communications Letters

Volume:

10

Number:

1

Date:

Jan. 2006

Pages:

49–51

Language:

English

Abstract

A method for the prediction of bit-error rates (BER) of bit-interleaved coded modulation systems with iterative decoding (BICM-ID) is presented, which is based solely upon the extrinsic information transfer (EXIT) chart and avoids extensive BER simulations. Comparisons show an accurate prediction, even for low BERs down to 10/sup -6/. Furthermore, an easy procedure to obtain the optimum rotation angle for a signal constellation set in conjunction with IQ Interleaving is described. Both methods can be applied to all types of channels.

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