Resource provisioning for multigranular traffic flows in multilayer networks

Authors:
Jacek Rzasa;Artur Lason;Andrzej Szymanski;Andrzej Jajszczyk
Affiliations:
Department of Telecommunications, AGH University of Science and Technology, Krakow, Poland 30-059;Department of Telecommunications, AGH University of Science and Technology, Krakow, Poland 30-059;Department of Telecommunications, AGH University of Science and Technology, Krakow, Poland 30-059;Department of Telecommunications, AGH University of Science and Technology, Krakow, Poland 30-059
Venue:
Photonic Network Communications
Year:
2012

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Abstract

The paper deals with the problem of multilayer resource provisioning in a network in which an operator needs to route traffic flows with different data rates. It is shown that the blocking probability of high data rate requests is usually higher than the blocking probability of other requests. A relevant strategy aimed at solving this problem is proposed, investigated, and compared with the known solution. Numerical results confirm that the proposed strategy is able to substantially reduce the blocking probability of high data rate requests at the cost of increased utilization of the packet switching layer and more complex routing of lightpaths.