Performance of MMSE turbo equalization using outer LDPC coding for magnetic recording channels
Ölçer, Sedat and Keskinöz, Mehmet (2004) Performance of MMSE turbo equalization using outer LDPC coding for magnetic recording channels. In: IEEE International Conference on Communications,
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We investigate the performance of minimum meansquare error turbo-equalization for LDPC-coded transmission over intersymbol-interference channels. The EXIT-chart technique is used to study the effect of code rate on the convergence of the turbo-equalization process. The analysis is conducted for partial-response channels of various types and for the magnetic recording channel. Performance results obtained from simulations show good agreement with the EXIT-chart analysis. They indicate that for applications requiring high code rates equalizerbased detection may suffer from a nonnegligible loss in performance as compared with maximum a posteriori detection.
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