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Performance of BCJR-DFE detectors over recording channels using pattern-dependent noise prediction

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4 Author(s)
Nangare, N. ; Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA ; Xueshi Yang ; Kurtas, E. ; Narayanan, K.

A noniterative receiver, namely Bahl-Cocke-Jelinek-Raviv (BCJR)-decision feedback equalizer (DFE), for achieving near capacity performance for intersymbol interference channels was proposed earlier. In this paper, we investigate the performance of BCJR-DFE receivers for recording channels with pattern-dependent media noise. To account for the media noise, we integrated pattern-dependent noise prediction (PDNP) into the BCJR-DFE receiver and evaluated its performance by comparing it to conventional iterative (turbo)-coded recording channels. Numerical simulations suggest that PDNP BCJR-DFE receivers provide superior or comparable performance as a turbo receiver, albeit with lower computation complexity and longer processing delays.

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Magnetics, IEEE Transactions on  (Volume:41 ,  Issue: 10 )