Title :
Routing and wavelength assignment (RWA) with power considerations in all-optical wavelength-routed networks
Author :
Ali, Maher ; Ramamurthy, Byrav ; Deogun, Jitender S.
Author_Institution :
Dept. of Comput. Sci. & Eng., Nebraska Univ., Lincoln, NE, USA
fDate :
6/21/1905 12:00:00 AM
Abstract :
Routing and wavelength assignment (RWA) is an important problem that arises in wavelength division multiplexed (WDM) optical networks. Previous studies have solved many variations of this problem under the assumption of perfect conditions regarding the power of a signal. We investigate this problem while allowing for degradation of routed signals by components such as taps, multiplexers, and fiber links. We assume that optical amplifiers are preplaced. We investigate the problem of routing the maximum number of connections while maintaining proper power levels. The problem is formulated as a mixed-integer nonlinear program and two-phase hybrid solution approaches employing two different heuristics are developed
Keywords :
integer programming; optical fibre amplifiers; optical fibre networks; telecommunication network routing; wavelength division multiplexing; WDM optical networks; all-optical wavelength-routed networks; fiber links; heuristics; mixed-integer nonlinear program; multiplexers; optical amplifiers; power considerations; power levels; routed signals degradation; routing and wavelength assignment; signal power; taps; two-phase hybrid solution; Degradation; Fiber nonlinear optics; Nonlinear optical devices; Nonlinear optics; Optical fiber networks; Stimulated emission; WDM networks; Wavelength assignment; Wavelength division multiplexing; Wavelength routing;
Conference_Titel :
Global Telecommunications Conference, 1999. GLOBECOM '99
Conference_Location :
Rio de Janeireo
Print_ISBN :
0-7803-5796-5
DOI :
10.1109/GLOCOM.1999.830014
