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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 6, Iss. 3 — Mar. 1, 2014
  • pp: 340–354

Slotted Advance Reservation for Multicast-Incapable Optical Wavelength Division Multiplexing Networks

Arush Gadkar, Tim Entel, Jeremy M. Plante, and Vinod M. Vokkarane  »View Author Affiliations

Journal of Optical Communications and Networking, Vol. 6, Issue 3, pp. 340-354 (2014)

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In this paper we investigate techniques for provisioning advance reservation (AR) multicast requests in multicast-incapable (MI) networks, which lack the ability to split an incoming signal to multiple output ports, without performing an O-E-O conversion. AR traffic consists of connection requests that arrive and reserve network resources at some time before they need them to ensure better quality of service than on-demand requests would receive. The traditional approach of providing multicast support in MI networks is to use an overlay approach in which a set of lightpaths is established from the source to each multicast destination member independently. This approach is wasteful of wavelength resources, particularly as the multicast destination set grows. We propose two alternative overlay approaches that take advantage of multiple-hop overlay-tree structures to limit the consumption of wavelengths in the network. We investigate static traffic scenarios on various network topologies and develop integer linear programs (ILPs) to optimally solve all three of the overlay-tree problems presented in this work with the goal of minimizing the total number of wavelengths required to service a multicast request set. We also present efficient heuristics that build and select overlay-trees that lower dynamic connection blocking and wavelength consumption. We compare the heuristics to the optimal ILPs on a small-scale network, and then further evaluate the heuristics on several large-scale topologies. In all scenarios, we are able to conclude that by sacrificing a minimization of O-E-O conversions, our more flexible overlay approaches, called drop at member node (MI-DMN) and drop at any node (MI-DAN), are superior in terms of resource usage when compared with the traditional naïve approach. Further dynamic traffic evaluations reveal that blocking may be lowered over the naïve approach by more than two orders of magnitude at low to medium traffic loads.

© 2014 Optical Society of America

OCIS Codes
(060.1155) Fiber optics and optical communications : All-optical networks
(060.4251) Fiber optics and optical communications : Networks, assignment and routing algorithms
(060.4253) Fiber optics and optical communications : Networks, circuit-switched
(060.4255) Fiber optics and optical communications : Networks, multicast
(060.4256) Fiber optics and optical communications : Networks, network optimization
(060.4265) Fiber optics and optical communications : Networks, wavelength routing

ToC Category:
Research Papers

Original Manuscript: August 22, 2013
Revised Manuscript: November 30, 2013
Manuscript Accepted: December 1, 2013
Published: February 27, 2014

Arush Gadkar, Tim Entel, Jeremy M. Plante, and Vinod M. Vokkarane, "Slotted Advance Reservation for Multicast-Incapable Optical Wavelength Division Multiplexing Networks," J. Opt. Commun. Netw. 6, 340-354 (2014)

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