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Conferences > ACP > 2009 > ThC > ThC4

On the Channel Capacity of Multilevel Modulation Schemes with Coherent Detection

Ivan B. Djordjevic, Lei Xu, and Ting Wang

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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 intersymbol interference (ISI) channel with memory. We also propose a multilevel low-density parity-check (LDPC)-coded turbo-equalization scheme that is able closely to approach the channel capacity.

© 2009 OSA, IEEE Photonics Society, SPIE, COS, CIC

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