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

PDF Article
More Like This
Adaptive Modulation and Coding Scheme in Coherent PON for Enhanced Capacity and Rural Coverage

Mu Xu, Haipeng Zhang, Zhensheng Jia, and Luis Alberto Campos
Th5I.4 Optical Fiber Communication Conference (OFC) 2021

Experimental Evaluation of High-Rate LDPC Codes for PMD Compensation by Turbo Equalization

Lyubomir L. Minkov, Ivan B. Djordjevic, Hussam G. Batshon, Lei Xu, Ting Wang, Milorad Cvijetic, and Franko Küeppers
JThA59 National Fiber Optic Engineers Conference (NFOEC) 2008

Approaching Shannon’s Capacity Limits of Fiber Optics Communications Channels Using Short LDPC Codes

Ivan B. Djordjevic and Bane Vasic
CWA7 Conference on Lasers and Electro-Optics (CLEO) 2004


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access Optica Member Subscription