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Folded orthogonal frequency division multiplexing
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DOI：10.1364/OE.24.029670.png)
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Abstract
En 中文
We propose and demonstrate a new sub-carrier multiplexing scheme, utilizing orthogonal, periodic-sinc-shaped sub-carrier spectra. This 'folded' OFDM allows for multicarrier bands to be generated with the precise, rectangular frequency definition of Nyquist WDM. We show that this scheme can be implemented with 10 GHz sub-bands, showing a 0.5-dB implementation penalty and successful transmission over 4160-km. We further investigate 40-GHz bands in an add/drop multiplexing scenario on a 50-GHz WDM grid, and show that folded OFDM can provided advantages over conventional OFDM in bandwidth-limited systems. (C) 2016 Optical Society of America
Keywords:
ALL-OPTICAL OFDM
SPECTRAL EFFICIENCY
SUPER-CHANNELS
NYQUIST-WDM
TRANSMISSION
SYSTEMS
FIBER
EQUALIZATION
GENERATION
RECEIVER
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