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Real-time-realizable Filtered-Multi-Tone (FMT) Modulation for Layered-FFT Nyquist WDM Spectral Shaping

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Abstract

An end-to-end FMT system, based on a novel layered FFT polyphase realization of uniform DFT filter banks, improves upon Reduced Guardband Interval (RGI) coherent OFDM, enabling highly efficient Nyquist WDM amenable to real-time FPGA/ASIC parallelization.

© 2011 Optical Society of America

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