Faster-than-Nyquist and beyond: how to improve spectral efficiency by accepting interference | Zendy

Giulio Colavolpe | Zendy; Tommaso Foggi | Zendy; Andrea Modenini | Zendy; Amina Piemontese | Zendy

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Faster-than-Nyquist and beyond: how to improve spectral efficiency by accepting interference

Author(s) -

Giulio Colavolpe,

Tommaso Foggi,

Andrea Modenini,

Amina Piemontese

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.026600

Subject(s) - nyquist–shannon sampling theorem , bandwidth (computing) , computer science , spectral efficiency , optics , modulation (music) , interference (communication) , transmission (telecommunications) , nonlinear system , electronic engineering , nyquist stability criterion , telecommunications , physics , mathematics , channel (broadcasting) , parametric statistics , statistics , quantum mechanics , acoustics , engineering , computer vision

We investigate the application of time and frequency packing techniques, an extension of the classical faster-than-Nyquist signaling, to long-haul optical links. These techniques provide a significant spectral efficiency increase and represent a viable alternative to overcome the theoretical and technological issues related to the use of high-order modulation formats. Adopting these techniques, we successfully demonstrate through simulations the transmission of 1 Tbps over 200 GHz bandwidth in a realistic (nonlinear) long-haul optical link.

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