Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 32,
  • Issue 16,
  • pp. 2862-2876
  • (2014)

Capacity of a Nonlinear Optical Channel With Finite Memory

Not Accessible

Your library or personal account may give you access

Abstract

The channel capacity of a nonlinear, dispersive fiber-optic link is revisited. To this end, the popular Gaussian noise (GN) model is extended with a parameter to account for the finite memory of realistic fiber channels. This finite-memory model is harder to analyze mathematically but, in contrast to previous models, it is valid also for nonstationary or heavy-tailed input signals. For uncoded transmission and standard modulation formats, the new model gives the same results as the regular GN model when the memory of the channel is about ten symbols or more. These results confirm previous results that the GN model is accurate for uncoded transmission. However, when coding is considered, the results obtained using the finite-memory model are very different from those obtained by previous models, even when the channel memory is large. In particular, the peaky behavior of the channel capacity, which has been reported for numerous nonlinear channel models, appears to be an artifact of applying models derived for independent input in a coded (i.e., dependent) scenario.

© 2014 IEEE

PDF Article
More Like This
New bounds on the capacity of the nonlinear fiber-optic channel

Ronen Dar, Mark Shtaif, and Meir Feder
Opt. Lett. 39(2) 398-401 (2014)

Ripple distribution for nonlinear fiber-optic channels

Mariia Sorokina, Stylianos Sygletos, and Sergei Turitsyn
Opt. Express 25(3) 2228-2238 (2017)

Nonlinear communication channels with capacity above the linear Shannon limit

Konstantin S. Turitsyn and Sergei K. Turitsyn
Opt. Lett. 37(17) 3600-3602 (2012)

Cited By

You do not have subscription access to this journal. Cited by 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
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved