An Analytical Model for Virtual Topology Reconfiguration in Optical Networks and A Case Study

Authors

Xi Yang, University of Nebraska-LincolnFollow
Byrav Ramamurthy, University of Nebraska-LincolnFollow

Date of this Version

2002

Comments

Published in Proceedings. Eleventh International Conference on Computer Communications and Networks, 2002. Copyright 2002 IEEE. Used by permission.

Abstract

An analytical model for Virtual Topology Reconfiguration (VTR) in optical networks is developed. It aims at the optical networks with a circuit-based data plane and an IPlike control plane. By identifying and analyzing the important factors impacting the network performance due to VTR operations on both planes, we can compare the benefits and penalties of different VTR algorithms and policies. The best VTR scenario can be adaptively chosen from a set of such algorithms and policies according to the real-time network situations. For this purpose, a cost model integrating all these factors is created to provide a comparison criterion independent of any specific VTR algorithm and policy. A case study based on simulation experiments is conducted to illustrate the application of our models.