Title :
Novel physical-layer impairment-aware routing algorithm for translucent optical networks with 43 Gb/s and 107 Gb/s channels
Author :
Pachnicke, Stephan ; Luck, Nicolas ; Krummrich, Peter M.
Author_Institution :
High Freq. Inst., Tech. Univ. Dortmund, Dortmund, Germany
fDate :
June 28 2009-July 2 2009
Abstract :
We present a novel constraint-based routing (CBR) algorithm, which accurately estimates linear and nonlinear physical-layer impairments of 43 and 107 Gb/s channels with duobinary and DQPSK modulation formats by combining fast analytical models for assessing the linear transmission impairments with a split-step Fourier approach optimized for computational speed to estimate the nonlinear intra-channel effects. Our CBR algorithm allows a significant increase in average and maximum transparent distance and thus a reduction in the number of required regenerators.
Keywords :
Fourier transforms; differential phase shift keying; optical fibre networks; optical modulation; quadrature phase shift keying; telecommunication channels; telecommunication computing; telecommunication network routing; CBR algorithm; DQPSK modulation; bit rate 107 Gbit/s; bit rate 43 Gbit/s; constraint-based routing algorithm; duobinary modulation; linear transmission impairments; nonlinear intrachannel effects; physical-layer impairment-aware routing algorithm; split-step Fourier approach; translucent optical networks; Analytical models; Bandwidth; Frequency estimation; Modulation; Network topology; Optical fiber networks; Optical fiber polarization; Optical filters; Polarization mode dispersion; Routing; all-optical networks; optical fiber nonlinearity; quality of transmission; routing and wavelength assignment;
Conference_Titel :
Transparent Optical Networks, 2009. ICTON '09. 11th International Conference on
Conference_Location :
Azores
Print_ISBN :
978-1-4244-4825-8
Electronic_ISBN :
978-1-4244-4827-2
DOI :
10.1109/ICTON.2009.5185065
