منابع مشابه
Optimisation of 80×10Gbit/s Ultra long-haul DWDM systems
This paper outlines an approach to modelling ultra long-haul DWDM links taking into account spectral variations of gain and noise in EDFAs. A black-box model is used to describe EDFA gain and noise figure tilt and full nonlinear simulations are carried out using the split-step Fourier method. The effect of pre-emphasis and power optimisation is investigated for a typical ultra long-haul link of...
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In this paper first we try to analysis the behavior ofthe SOAs in the optical networks and then have proposed anumerical simple model to simulate the behavior of thesemiconductor optical amplifiers. After that by employing thismodel as inline amplifier for a DWDM optical system, we havesimulated the transmission of 10 channels with bit rate 10 Gb/sup to distance 3970 km with RZ-DPSK modulation ...
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Various binary and non-binary modulation techniques, in conjunction with appropriate detection techniques, are compared in terms of their spectral efficiencies and signal-to-noise ratio requirements, assuming amplified spontaneous emission is the dominant noise source. These include (a) pulse-amplitude modulation with direct detection, (b) differential phase-shift keying with interferometric de...
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تخمین دقیق مشخصات کانال در سیستم های مخابراتی یک امر مهم محسوب می گردد. این امر به ویژه در کانال های بیسیم با خاصیت فرکانس گزینی و زمان گزینی شدید، چالش بزرگی است. مقالات متعدد پر از روش های مبتکرانه ای برای طراحی و آنالیز الگوریتم های تخمین کانال است که بیشتر آنها از روش های خاصی استفاده می کنند که یا دارای عملکرد خوب با پیچیدگی محاسباتی بالا هستند و یا با عملکرد نه چندان خوب پیچیدگی پایینی...
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Department of Animal and Poultry Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA; *Rectortown Equine Center, Rectortown, VA; †Department of LACS, Phase II, Virginia Maryland Regional College of Veterinary Medicine, Blacksburg, VA; ‡Department of Animal Sciences, Hebrew University, Rehovot, Israel and §Equine Studies Group, Waltham Centre for Pet Nutrition and Care,...
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ژورنال
عنوان ژورنال: Journal of Lightwave Technology
سال: 2016
ISSN: 0733-8724,1558-2213
DOI: 10.1109/jlt.2015.2503049