DocumentCode :
2803633
Title :
Adaptive routing and wavelength assignment with power constraints using Ant Colony Optimization
Author :
Pavani, Gustavo Sousa ; Waldman, Helio
Author_Institution :
State Univ. of Campinas (Unicamp), Campinas
fYear :
2006
fDate :
3-6 Sept. 2006
Firstpage :
637
Lastpage :
642
Abstract :
This work proposes a novel routing algorithm for transparent optical networks, which is based on the ant colony optimization (ACO) meta-heuristics. It takes into consideration the bit error rate (BER) of the connections that is derived from amplified spontaneous emission (ASE) noise accumulated along the lightpath. We implement a call admission control (CAC) to verify if a connection meets the following criteria: it has a BER below the maximum level, which is given by the sensitivity power at each component, and the total aggregate power on every network link is below a threshold, which is necessary to mitigate fiber non-linear effects. By using an integrated generalized multi-protocol label switching (GMPLS) control plane, we demonstrate the effectiveness of our proposed algorithm over a fixed-alternate routing scheme to reduce the overall blocking probability.
Keywords :
error statistics; multiprotocol label switching; optical fibre networks; optimisation; telecommunication congestion control; telecommunication network routing; wavelength assignment; adaptive routing; amplified spontaneous emission; ant colony optimization; bit error rate; blocking probability; call admission control; generalized multiprotocol label switching; optical network; power constraint; wavelength assignment; Ant colony optimization; Bit error rate; Fiber nonlinear optics; Nonlinear optics; Optical distortion; Optical fiber networks; Optical noise; Stimulated emission; Wavelength assignment; Wavelength routing; ASE noise; Ant Colony Optimization; GMPLS; Physical-layer impairments; Routing and Wavelength Assignment;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Telecommunications Symposium, 2006 International
Conference_Location :
Fortaleza, Ceara
Print_ISBN :
978-85-89748-04-9
Electronic_ISBN :
978-85-89748-04-9
Type :
conf
DOI :
10.1109/ITS.2006.4433351
Filename :
4433351
Link To Document :
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