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Abstract
We propose a model that considers several physical impairments in all-optical networks based on optical signal-to-noise degradation. Our model considers the gain saturation effect and amplified spontaneous emission depletion in optical amplifiers, coherent crosstalk in optical switches, and four-wave mixing in transmission fibers. We apply our model to investigate the impact of different physical impairments on the performance of all-optical networks. The simulation results show the impact of each impairment on network performance in terms of blocking probability as a function of device parameters. We also apply the model as a metric for impairment-constraint routing in all-optical networks. We show that our proposed routing and wavelength assignment algorithm outperforms two common approaches.
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Influence of physical layer impairments on connection provisioning of WDM Networks
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Department of Electrical Engineering, University of Pernambuco, 52720-001, Recife, PE, Brazil
Helder A. Pereira
Department of Electronics and Systems, Federal University of Pernambuco, 50740-530, Recife, PE, Brazil
Daniel A. R. Chaves & Joaquim F. Martins-Filho
Department of Computing and Systems, University of Pernambuco, 52720-001, Recife, PE, Brazil
Carmelo J. A. Bastos-Filho
- Helder A. Pereira
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- Daniel A. R. Chaves
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- Carmelo J. A. Bastos-Filho
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Correspondence toJoaquim F. Martins-Filho.
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Pereira, H.A., Chaves, D.A.R., Bastos-Filho, C.J.A.et al. OSNR model to consider physical layer impairments in transparent optical networks.Photon Netw Commun18, 137–149 (2009). https://doi.org/10.1007/s11107-008-0178-2
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