On the channel capacity of multilevel modulation schemes with coherent detection | Zendy

Ivan B. Djordjević | Zendy; Lei Xu | Zendy; Ting Wang | Zendy

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On the channel capacity of multilevel modulation schemes with coherent detection

Author(s) -

Ivan B. Djordjević,

Lei Xu,

Ting Wang

Publication year - 2009

Publication title -

proceedings of spie, the international society for optical engineering/proceedings of spie

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.192

H-Index - 176

eISSN - 1996-756X

pISSN - 0277-786X

DOI - 10.1117/12.851122

Subject(s) - channel (broadcasting) , computer science , transmission (telecommunications) , modulation (music) , equalization (audio) , electronic engineering , wavelength division multiplexing , channel capacity , scheme (mathematics) , fibre channel , upgrade , telecommunications , topology (electrical circuits) , computer network , physics , optics , engineering , electrical engineering , mathematics , wavelength , mathematical analysis , acoustics , operating system

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.

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