Virtual topology reconfiguration in hierarchical cross-connect WDM networks

Hsiao Yun Yeh*, Chien Chen, Ying Yu Chen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Multigranularity optical cross-connects (MG-OXCs) have emerged as the means to save the cost of manufacturing large optical cross-connects (OXCs) used in the IP-over-WDM networks. This paper considers the virtual topology configuration problem in the MG-OXC networks that has not yet been studied. We assume that the future traffic pattern is known a priori and we are to reconfigure the original topology, without dramatically changing the current virtual topology, to the new one that is suitable for the new traffic pattern. We propose our heuristic Preference Based Reconfiguration Algorithm (PBRA) to solve the problem by constructing an auxiliary graph to help determining the addition, deletion, or keeping of the virtual links. Simulation results show that we can change less original virtual topology at the cost of small increase in blocking probability.

Original languageEnglish
Title of host publication2005 Workshop on High Performance Switching and Routing, HPSR 2005
Pages515-519
Number of pages5
DOIs
StatePublished - 15 Nov 2005
Event2005 Workshop on High Performance Switching and Routing, HPSR 2005 - Hong Kong, China
Duration: 12 May 200514 May 2005

Publication series

Name2005 Workshop on High Performance Switching and Routing, HPSR 2005

Conference

Conference2005 Workshop on High Performance Switching and Routing, HPSR 2005
CountryChina
CityHong Kong
Period12/05/0514/05/05

Keywords

  • Auxiliary graph
  • Multigranularity optical cross-connects
  • Reconfiguration
  • Virtual topology
  • WDM

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    Yeh, H. Y., Chen, C., & Chen, Y. Y. (2005). Virtual topology reconfiguration in hierarchical cross-connect WDM networks. In 2005 Workshop on High Performance Switching and Routing, HPSR 2005 (pp. 515-519). (2005 Workshop on High Performance Switching and Routing, HPSR 2005). https://doi.org/10.1109/HPSR.2005.1503286