Decision Feedback Equalization for Bandwidth-Constrained 28Gbaud Nyquist-WDM PDM-8QAM over 37.5 GHz Grid

01 January 2013

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We propose to use decision feedback equalization for ISI mitigation on a 28Gbaud PDM-8QAM bandwidth-constrained N-WDM system. We compare DFE and MAP detection and show that DFE offers a more interesting performance/complexity trade-off than MAP.