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A New Approach to Dimensioning Optical Networks

Nayak, Tapan Kumar and Sivarajan, Kumar N (2002) A New Approach to Dimensioning Optical Networks. In: IEEE Journal on Selected Areas in Communications, 20 (1). pp. 134-148.


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A network dimensioning method allocates appropriate capacities to the links based on the network topology and traffic requirements. In this paper, we introduce the concept of absorption probability instead of blocking probability which is a more appropriate measure to express the grade of service of an optical network, in many cases. Absorption probability can be obtained from transient analysis of a Markov chain. Computation of exact absorption probabilities requires large computing resources and is thus feasible only for small networks. Here, we present a method to approximate the absorption probability of a wavelength-routed network with arbitrary topology and traffic patterns assuming the nodes have full wavelength conversion capability. We show that the approximation method performs well especially in the desired range of absorption probabilities and it is computationally efficient.

Item Type: Journal Article
Publication: IEEE Journal on Selected Areas in Communications
Publisher: IEEE
Additional Information: ©2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: Absorption probability;capacity allocation;network dimensioning;optical networks
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 22 Aug 2008
Last Modified: 19 Sep 2010 04:16
URI: http://eprints.iisc.ac.in/id/eprint/2026

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