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We justify a lightpath characteristic dependent margin when estimating the quality of transmission for the establishment of a connection by showing the resulting better prediction accuracy and eventually the reduction of the required transmission resources.
The emergence of new devices and technologies introduces new trends and design issues for optical transport networks. The higher performance of transmission and switch systems enables the reduction of optoelectronic conversions in intermediate nodes with the introduction of transparency in the network. Simultaneously, the system of Automatic Switched Optical Networks (ASON) describes the rules for...
We illustrate the importance to consider physical uncertainties in the quality of transmission estimators used for impairment constrained based routing. Power uncertainties of 1 dB yield 80% of further regenerators.
Reconfigurable transparent networks are now a reality in the core layer thanks to the implementation of innovative transmission and wavelength routing sub-systems. Transparency on a large scale opens up new perspectives in terms of scalability and flexibility. There are numerous promising technologies to achieve that goal but it is likely that only few of them will really prevail in the field. For...
The impact of the quality of transmission estimator margin on the prediction accuracy for a connection establishment in network planning is studied as a function of the knowledge of the actual chromatic dispersion map.
We present the impact on the OSNR penalty of the optical routing applied to the near channels of a given connection along its light-path. We compare this penally to the one induced by point-to-point transmission.
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