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A new method for predicting the channel estimate influence on performance of TDMA mobile radio systems

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4 Author(s)
Wautier, A. ; Ecole Superieure d''Electr., Gif-sur-Yvette, France ; Dany, J.-C. ; Mourot, C. ; Kumar, V.

Receivers for time division multiple access mobile radio systems usually consist of two functional blocks: A channel estimator and an equalizer. We present a new method for predicting the channel estimate influence on performance of such receivers operating over frequency selective time-varying Rayleigh fading channels. The method can be applied to optimize system parameters. It is shown that global receiver performance can be analytically expressed in terms of the performance characteristics of two blocks considered disjointly, i.e. the equalizer operating over a perfectly known channel and the channel estimator operating over a time-varying channel. The analysis leads to expressions of the error probabilities in a form that can conveniently be used in numerical work. The results obtained from Monte Carlo evaluation agree well with the analytical evaluation of the error probability derived from the proposed method with the benefit of the low complexity and rapidity for the latter

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Vehicular Technology, IEEE Transactions on  (Volume:44 ,  Issue: 3 )