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The impact of white gaussian noise mismatch on linear and decision feedback equalizers

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2 Author(s)
Gozzo, F. ; Loral Federal Syst., Owego, NY, USA ; Anderson, J.B.

Analyzes the sensitivity of equalizers to white gaussian noise mismatch, which exists whenever the noise power observed during training differs from that observed during detection. A closed-form solution for the mean-square error is obtained for linear and decision feedback equalizers as a function of the channel spectrum and degree of noise mismatch. The results show that increasing equalizer complexity may actually degrade performance in the presence of channel mismatch.<>

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Communications, IEEE Transactions on  (Volume:43 ,  Issue: 2/3/4 )