We consider realistic long-haul optical links, with linear and nonlinear impairments, and investigate the application of time-frequency packing with low-order constellations as a possible solution to increase the spectral efficiency. A detailed comparison with available techniques from the literature will be also performed. We will see that this technique represents a feasible solution to overcome the relevant theoretical and technological issues related to this spectral efficiency increase and could be more effective than the simple adoption of high-order modulation formats.
Time-Frequency Packing for High-Capacity Coherent Optical Links / Colavolpe, Giulio; Foggi, Tommaso. - In: IEEE TRANSACTIONS ON COMMUNICATIONS. - ISSN 0090-6778. - 62:8(2014), pp. 2986-2995. [10.1109/TCOMM.2014.2339321]
Time-Frequency Packing for High-Capacity Coherent Optical Links
COLAVOLPE, Giulio;FOGGI, Tommaso
2014-01-01
Abstract
We consider realistic long-haul optical links, with linear and nonlinear impairments, and investigate the application of time-frequency packing with low-order constellations as a possible solution to increase the spectral efficiency. A detailed comparison with available techniques from the literature will be also performed. We will see that this technique represents a feasible solution to overcome the relevant theoretical and technological issues related to this spectral efficiency increase and could be more effective than the simple adoption of high-order modulation formats.| File | Dimensione | Formato | |
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