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http://dx.doi.org/10.5573/ieie.2014.51.5.070

The Nonlinear Equalizer for Super-RENS Read-out Signals using an Asymmetric Waveform Model  

Moon, Woosik (Soongsil University, School of Electronic Engineering)
Park, Sehwang (Soongsil University, School of Electronic Engineering)
Lee, Jieun (Soongsil University, School of Electronic Engineering)
Im, Sungbin (Soongsil University, School of Electronic Engineering)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.51, no.5, 2014 , pp. 70-75 More about this Journal
Abstract
Super-resolution near-field structure (super-RENS) read-out samples are affected by a nonlinear and noncausal channel, which results in inter-symbol interference (ISI). In this study, we investigate asymmetry or domain bloom in super-RENS in terms of equalization. Domain bloom is caused by writing process in optical recording. We assume in this work that the asymmetry symbol conversion scheme is to generate asymmetric symbols, and then a linear finite impulse response filter can model the read-out channel. For equalizing this overall nonlinear channel, the read-out signals are deconvolved with the finite impulse response filter and its output is decided based on the decision rule table that is developed from the asymmetry symbol conversion scheme. The proposed equalizer is investigated with the simulations and the real super-RENS samples in terms of raw bit error rate.
Keywords
domain bloom; equalizer; nonlinearity; super-RENS;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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