Blind GSM Channel Estimation based on Higher Order Statistics

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Abstract:

The performance of many communication systems could be improved if the transmission channel was estimated blindly, i.e. without training sequences. As an example, we investigate in this paper whether, on GSM conditions, the blind channel estimation method EVI (EigenVector approach can compete with the non-blind least squares scheme based on the cross-correlation. For Gaussian stationary uncorrelated scattering channels, we give simulated bit error rates (BER) after Viterbi detection in terms of the mean signal-to-noise ratio (mSNR) for blind, non-blind, and ideal channel estimation. Averaged over three COST-207 propagation environments, EVI leads to an mSNR loss of 1.1dB only, which is quite remarkable for an approach based on higher order statistics, as just 142 samples can be used for blind channel estimation.

Document type:

Conference Paper

Publication:

Montreal, Canada, 8. - 12. June 1997

Conference:

IEEE International Conference on Communications (ICC 97)

Pages:

46-50

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