A nonlinear electrical equalizer with decision feedback for OOK optical communication systems |
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Authors: | Katz G Sadot D |
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Affiliation: | with the Department of Electrical and Computer Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel (e-mail: giladk@ee.bgu.ac.il; sadot@ee.bgu.ac.il).; |
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Abstract: | In this paper we introduce a nonlinear equalizer using the Radial Basis Function (RBF) network with decision feedback equalizer (DFE) for electronic dispersion compensation in optical communication systems with on-off-keying and a direct detection receiver. The RBF method introduces a non-linear equalization technique suitable for optical communication direct detection systems that include nonlinear transformation at the photodetector. A bit error rate performance comparison shows that the RBF with DFE out performs the RBF without DFE and achieves similar results provided by maximum likelihood sequence estimator. |
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