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Proceedings Paper

On the channel capacity of multilevel modulation schemes with coherent detection
Author(s): Ivan B. Djordjevic; Lei Xu; Ting Wang
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Paper Abstract

We describe a method to determine the channel capacity of an arbitrary multilevel modulation scheme by modeling the fiber-optic channel as a dynamical nonlinear ISI channel with memory. We also propose a multilevel turbo-equalization scheme that is able closely to approach the channel capacity. We show that with this scheme we are able straightforwardly to upgrade currently installed 10 Gb/s optical transmission systems to 100 Gb/s, and even with small memory assumption we are able to achieve 100 Gb/s per DWDM channel transmission over 9600 km.

Paper Details

Date Published: 1 December 2009
PDF: 9 pages
Proc. SPIE 7632, Optical Transmission Systems, Switching, and Subsystems VII, 76320W (1 December 2009); doi: 10.1117/12.851122
Show Author Affiliations
Ivan B. Djordjevic, The Univ. of Arizona (United States)
Lei Xu, NEC Labs America (United States)
Ting Wang, NEC Labs America (United States)


Published in SPIE Proceedings Vol. 7632:
Optical Transmission Systems, Switching, and Subsystems VII
Dominique Chiaroni, Editor(s)

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