Title :
Performance comparison of methods to solve the Routing and Spectrum Allocation problem
Author :
Durán, R.J. ; Rodríguez, I. ; Fernández, N. ; de Miguel, I. ; Merayo, N. ; Fernández, P. ; Aguado, J.C. ; Jiménez, T. ; Lorenzo, R.M. ; Abril, E.J.
Author_Institution :
Opt. Commun. Group, Univ. of Valladolid, Valladolid, Spain
Abstract :
Future optical networks may increase their efficiency and flexibility by the utilization of Orthogonal Frequency Division Multiplexing (OFDM). When such a technique is employed, the spectrum assigned to a lightpath can be tailored to suit its requirements. Thus, when addressing the establishment of optical connections (lightpaths) in flexible optical networks, rather than solving the well-known Routing and Wavelength Assignment (RWA) problem, the Routing and Spectrum Assignment (RSA) problem should be solved. In this paper, we propose and compare a number of techniques to solve the RSA problem.
Keywords :
OFDM modulation; optical fibre networks; telecommunication network routing; wavelength assignment; OFDM; RSA problem; RWA problem; optical connection; optical network; orthogonal frequency division multiplexing; routing allocation problem; routing assignment; spectrum allocation problem; spectrum assignment; wavelength assignment; Heuristic algorithms; OFDM; Optical fibers; Resource management; Routing; Wavelength assignment; OFDM; Routing and Spectrum Allocation (RSA) algorithms; flexible optical networks;
Conference_Titel :
Transparent Optical Networks (ICTON), 2012 14th International Conference on
Conference_Location :
Coventry
Print_ISBN :
978-1-4673-2228-7
Electronic_ISBN :
2161-2056
DOI :
10.1109/ICTON.2012.6254419
