Jamming resistance capabilities of spectrally-phase encoded OCDMA communication systems with optimum and suboptimum (nonlinear two-photon-absorption) receiver structures[electronic  resource]

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Emadi, M. J ; Sharif University Of Technology

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Type of Document: Article
DOI: 10.1109/JLT.2009.2027030
Abstract:
In this paper, we study three types of jammers, namely, pulse-jammer, partial-band jammer, and follower-jammer, in a typical fiber-optic-based spectrally phase-encoded optical code division multiple-access (SPE-OCDMA) system. We analyze, mathematically, the effects of the aforementioned jammers on the performance of an SPE-OCDMA system for two scenarios, namely, ideal noiseless channel with an ideal optimum receiver and an ultrahigh-speed nonlinear receiver based on two-photon-absorption (TPA) in a noisy channel. Also, for each of the above cases, two types of modulation, namely, on-off keying (OOK) and two-code keying (2CK) are investigated and their system performances are compared. It is shown that under certain conditions, the system performance can be dramatically degraded due to the jamming signals; also, systems using 2CK modulation show a better resistance and performance when compared to systems using OOK modulation
Keywords:
Amplitude shift keying ; Code division multiple access ; Code division multiplexing ; Jamming ; Nonlinear optics ; Optical fibre communication ; Optical receivers ; Two-photon processes
Source: IEEE Journal of Lightwave Technology ; Vol. 27, No. 22, PP. 5010-5021, Nov. 15, 2009
URL: http://ieeexplore.ieee.org/xpl/abstractKeywords.jsp?tp=&arnumber=5159481&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5159481