Title :
Precoding for Non-Linear Interference Limited WDM Systems
Author :
Modi, Kirtan N. ; Brandt-Pearce, Maïte
Author_Institution :
Virginia Univ., Charlottesville
Abstract :
Multichannel signal design for cross-talk limited fiber optic systems is considered. We focus on mitigating cross-talk in the form of cross-phase modulation and four-wave-mixing phenomena resulting from fiber non-linearities. Heuristic signal designs are presented for systems dominated either by XPM effects or by FWM effects. The analysis indicates that the designs presented result in significant energy gains over traditional on-off keying based single user modulation schemes.
Keywords :
amplitude shift keying; multiwave mixing; optical crosstalk; optical fibre communication; optical modulation; phase modulation; precoding; wavelength division multiplexing; FWM effects; WDM systems; XPM effects; cross-phase modulation; cross-talk limited fiber optic systems; fiber nonlinearities; four-wave-mixing phenomena; heuristic signal designs; multichannel signal; nonlinear interference; on-off keying; single user modulation schemes; Interference; Multiuser detection; Nonlinear optics; Optical crosstalk; Optical fibers; Optical receivers; Optical transmitters; Phase modulation; Signal design; Wavelength division multiplexing;
Conference_Titel :
Information Sciences and Systems, 2007. CISS '07. 41st Annual Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
1-4244-1063-3
Electronic_ISBN :
1-4244-1037-1
DOI :
10.1109/CISS.2007.4298395
