Decision-feedback detection strategy for nonlinear frequency-division multiplexing

By exploiting a causality property of the nonlinear Fourier transform, a novel decision-feedback detection strategy for nonlinear frequency-division multiplexing (NFDM) systems is introduced. The performance of the proposed strategy is investigated both by simulations and by theoretical bounds and a...

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Bibliographic Details
Published inOptics express Vol. 26; no. 9; pp. 12057 - 12071
Main Authors Civelli, Stella, Forestieri, Enrico, Secondini, Marco
Format Journal Article
LanguageEnglish
Published United States 30.04.2018
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Summary:By exploiting a causality property of the nonlinear Fourier transform, a novel decision-feedback detection strategy for nonlinear frequency-division multiplexing (NFDM) systems is introduced. The performance of the proposed strategy is investigated both by simulations and by theoretical bounds and approximations, showing that it achieves a considerable performance improvement compared to previously adopted techniques in terms of Q-factor. The obtained improvement demonstrates that, by tailoring the detection strategy to the peculiar properties of the nonlinear Fourier transform, it is possible to boost the performance of NFDM systems and overcome current limitations imposed by the use of more conventional detection techniques suitable for the linear regime.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.26.012057