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A sequence-based block decision feedback equalizer (BDFE) with soft feedback is presented for turbo equalization. The proposed algorithm can be used in the channel equalization for calculation of the a posteriori probability (APP) by collecting information of the entire block as in maximum a-posteriori probability (MAP) algorithm. The sequence-based detection is made possible by combining both soft...
Turbo equalizer exhibits dramatic performance improvement comparing with conventional equalizers by combining equalization and decoding, where soft information is iteratively exchanged between the equalizer and decoder. However, turbo equalization is much more complex and hence precludes practical implementation when considering multilevel modulations over highly dispersive channels. In this letter,...
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