Design of virtual topology reconfiguration of wavelength-routed network

Fengqing Liu; Qingji Zeng; Xu Zhu

doi:10.1117/12.510885

19 August 2003 Design of virtual topology reconfiguration of wavelength-routed network

Fengqing Liu, Qingji Zeng, Xu Zhu

Proceedings Volume 5247, Optical Transmission Systems and Equipment for WDM Networking II; (2003) https://doi.org/10.1117/12.510885
Event: ITCom 2003, 2003, Orlando, Florida, United States

Abstract

This paper studies the problem of virtual topology reconfiguration for changing traffic patterns in wavelength-routed network. We formulate it as an optimization problem, which tries to find out the virtual topology with least lightpath changes with network performance within given bound, when traffic demand imposed on wavelength-routed network changes. Average Packet Hop Count (APHD) is used to measure the degree of network performance. A linear formulation is presented and solved by MILP (Mixed Integer Linear Programming) method. Then we analyze the relationship between lightpath changes and degradation degree of performance. It can be seen that a large cost reduction for reconfiguration can be achieved by giving up a small amount of network performance.

Citation Download Citation

Fengqing Liu, Qingji Zeng, and Xu Zhu "Design of virtual topology reconfiguration of wavelength-routed network", Proc. SPIE 5247, Optical Transmission Systems and Equipment for WDM Networking II, (19 August 2003); https://doi.org/10.1117/12.510885

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