Approaches for capacity and revenue optimization in suvivable WDM networks

Authors:
Murari Sridharan;Arun K. Somani;Murti V. Salapaka
Affiliations:
-;-;-
Venue:
Journal of High Speed Networks - Survivable optical networks - part I
Year:
2001

Citing 0
Cited 7

Path-protection routing and wavelength assignment (RWA) in WDM mesh networks under duct-layer constraints

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Lightpath re-optimization in mesh optical networks

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Shared risk link group (SRLG)-diverse path provisioning under hybrid service level agreements in wavelength-routed optical mesh networks

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Fast network re-optimization schemes for MPLS and optical networks

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On the complexity of and algorithms for finding the shortest path with a disjoint counterpart

IEEE/ACM Transactions on Networking (TON)
Fast network re-optimization schemes for MPLS and optical networks

Computer Networks: The International Journal of Computer and Telecommunications Networking
A GRASP-based network re-optimization strategy for improving RWA in multi-constrained optical transport infrastructures

Computer Communications

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Abstract

In this paper, we consider two important objectives of networkoperation: (i) capacity minimization and (ii) revenue maximization.For capacity minimization, we formulate three operational phases insurvivable WDM network operation viz., initial call set up,short/medium-term reconfiguration, and long-term reconfiguration.All three phases are derived from a single integer linearprogramming (ILP) formulation. This common framework incorporatesservice disruption. We modify the framework for revenuemaximization that includes a service differentiation model based onlightpath protection. We propose a multistage solution methodologyto solve individual service classes sequentially and combine themto obtain a feasible solution. We provide cost comparisons in termsof increase in revenue obtained by various service classes with thebase case of accepting demands without any protection. Results areprovided to demonstrate the effectiveness of our framework.