Efficient dynamic traffic grooming in service-differentiated WDM mesh networks

Authors:
Harsha V. Madhyastha;C. Siva Ram Murthy
Affiliations:
Department of Computer Science and Engineering, University of Washington, Seattle, WA;Department of Computer Science and Engineering, Indian Institute of Technology Madras, Chennai 600036, India
Venue:
Computer Networks: The International Journal of Computer and Telecommunications Networking
Year:
2004

Citing 4
Cited 2

On scheduling all-to-all personalized connections and cost-effective designs in WDM rings

IEEE/ACM Transactions on Networking (TON)
An effective and comprehensive approach for traffic grooming and wavelength assignment in SONET/WDM rings

IEEE/ACM Transactions on Networking (TON)
Grooming of arbitrary traffic in SONET/WDM BLSRs

IEEE Journal on Selected Areas in Communications
Traffic grooming in an optical WDM mesh network

IEEE Journal on Selected Areas in Communications

Rerouting schemes for dynamic traffic grooming in optical WDM networks

Computer Networks: The International Journal of Computer and Telecommunications Networking
Grooming of multicast sessions in metropolitan WDM ring networks

Computer Networks: The International Journal of Computer and Telecommunications Networking

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Abstract

In this paper, we address the issue of traffic grooming in arbitrary WDM mesh networks. We present a novel groomer architecture wherein a combination of grooming at two different granularities is utilized to make the setup cost-effective without compromising on efficiency. We put forward an efficient algorithm for dynamic routing and wavelength assignment of sub-wavelength connections. We also propose a means of rerouting connections dynamically to facilitate increase in the average call acceptance ratio. Rerouting in the dynamic scenario has never been considered before. The connections, which may have arbitrary bandwidth requirements, are considered to be service-differentiated based on the need for protection. We show the advantage of employing segmented backup in place of end-to-end backup as well as the benefits of the rerouting mechanism we propose through extensive simulation results.