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What is Optimizing Linear Equalizer Taps in Turbo Equalization about?
This paper proposes optimizing the tap gains of a linear equalizer used in turbo equalization based on minimizing the mean log likelihood ratio square error, rather than the traditional minimum mean square error approach. The equalizer is trained over different signal-to-noise ratios and variances of the extrinsic information. Simulation results show the proposed optimization criterion achieves 0.2 dB better asymptotic performance than MMSE, though it is still 0.1 dB worse than using an exact a posteriori p
- Author
- radga1977
- Language
- EN