Searched for: department:"Architecture"
(1 - 9 of 9)
document
Beshir, A. (author), Nuijts, R. (author), Malhotra, R. (author), Kuipers, F. (author)
Traffic grooming allows efficient utilization of network capacity by aggregating several independent traffic streams into a wavelength. In addition, survivability and impairment-awareness (i.e., taking into account the effect of physical impairments) are two important issues that have gained a lot of research interest in the area of optical...
conference paper 2011
document
Beshir, A.A. (author)
Optical networks employing Wavelength Division Multiplexing (WDM) technology allow the multiplexing of several independent wavelength channels into a fiber. Since each wavelength channel operates independently at several Gb/s, WDM optical networks offer a tremendous transport capacity (which is in the order of several Tb/s), which makes them...
doctoral thesis 2011
document
Kuipers, F.A. (author), Beshir, A.A. (author), Orda, A. (author), Van Mieghem, P. (author)
Physical impairments, such as noise and signal distortions, negatively affect the quality of information transfer in optical networks. The effect of physical impairments predominantly augments with distance and bit rate of the signal to the point that it becomes detrimental to the information transfer. To reverse the effect of physical...
conference paper 2010
document
Beshir, A. (author), Yannuzzi, M. (author), Kuipers, F. (author)
With the increasing deployment of wavelength division multiplexing (WDM) optical networks, the need for advanced lightpath provisioning algorithms and protocols in a multi-domain setting is becoming evident. In order to increase efficiency by relaxing the wavelength continuity constraint in WDM optical networks, wavelength converters are often...
conference paper 2010
document
Beshir, A.A. (author), Kuipers, F.A. (author)
A survivable connection usually requires computing link-disjoint primary and backup paths. Finding a min-sum pair of link-disjoint paths whose total cost is minimized can be solved in polynomial time. However, adding extra requirements may render the problem NP-complete. In this paper, we study different variants of the min-sum link-disjoint...
conference paper 2009
document
Kuipers, F.A. (author), Beshir, A.A. (author), Orda, A. (author), Van Mieghem, P.F.A. (author)
Physical impairments, such as noise and signal distortions, negatively affect the quality of information transport in optical networks. The effect of physical impairments augments with distance and bit rate of the signal to the point that it becomes detrimental to the information transfer. To reverse the effect of physical impairments, the...
report 2009
document
Beshir, A.A. (author), Kuipers, F.A. (author), Van Mieghem, P.F.A. (author), Orda, A. (author)
In WDM networks, survivable routing and wavelength assignment (SRWA) involves assigning link-disjoint primary and backup lightpaths. In the on-line SRWA problem, a sequence of requests arrive and each request is either accepted or rejected based only on the input sequence seen so far. For special networks, we establish on-line algorithms with...
report 2009
document
Beshir, A. (author), Fernando Kuipers, F. (author), Orda, A. (author), Van Mieghem, P. (author)
Wavelength Division Multiplexing (WDM) optical networks offer a large amount of bandwidth using multiple, but independent wavelength channels (or lightpaths), each operating at several Gb/s. Since the traffic between users is usually only a fraction of the capacity offered by a wavelength, several independent traffic streams can be groomed...
conference paper
document
Beshir, A.A. (author), Kuipers, F.A. (author), Van Mieghem, P. (author), Orda, A. (author)
In WDM networks, survivable routing and wavelength assignment (SRWA) involves assigning link-disjoint primary and backup lightpaths. In the on-line SRWA problem, a sequence of requests arrive and each request is either accepted or rejected based only on the input sequence seen so far. For special networks, we establish on-line algorithms with...
conference paper
Searched for: department:"Architecture"
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