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Redundancy allocation in turbo-equalizer design

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2 Author(s)
Peacock, M.J.M. ; Sch. of Electr. & Inf. Eng., Univ. of Sydney, NSW, Australia ; Collings, I.B.

This paper considers properties of the extrinsic information transfer (EXIT) functions of turbo equalized intersymbol interference channels and finite-impulse response precoders. An analytic expression is derived for the maximum value of the EXIT function of the equalizer. Using this parameter, a design strategy is proposed for allocating redundancy between the equalizer and the decoder. The key quantities are pilot-symbol rate and code puncturing, for fixed overall data and symbol rates.

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Communications, IEEE Transactions on  (Volume:53 ,  Issue: 2 )