Broadband Communications, Networks, and Systems. 7th International ICST Conference, BROADNETS 2010, Athens, Greece, October 25–27, 2010, Revised Selected Papers

Research Article

Multicast Routing in Hierarchical Optical Networks Using Collection-Distribution Networks

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  • @INPROCEEDINGS{10.1007/978-3-642-30376-0_19,
        author={Onur Turkcu and Suresh Subramaniam and Arun Somani},
        title={Multicast Routing in Hierarchical Optical Networks Using Collection-Distribution Networks},
        proceedings={Broadband Communications, Networks, and Systems. 7th International ICST Conference, BROADNETS 2010, Athens, Greece, October 25--27, 2010, Revised Selected Papers},
        proceedings_a={BROADNETS},
        year={2012},
        month={10},
        keywords={multicasting light-trails hierarchical optical networks routing algorithms},
        doi={10.1007/978-3-642-30376-0_19}
    }
    
  • Onur Turkcu
    Suresh Subramaniam
    Arun Somani
    Year: 2012
    Multicast Routing in Hierarchical Optical Networks Using Collection-Distribution Networks
    BROADNETS
    Springer
    DOI: 10.1007/978-3-642-30376-0_19
Onur Turkcu1,*, Suresh Subramaniam2,*, Arun Somani1,*
  • 1: Iowa State University
  • 2: The George Washington University
*Contact email: onurturk@iastate.edu, suresh@gwu.edu, arun@iastate.edu

Abstract

Emerging optical networks have hierarchical architectures with varying capabilities at different levels. Moreover, many applications nowadays require multicast (one-to-many) connections. We propose a network model that has such a hierarchical architecture which is designed for multicast connections. We develop a multi-stage routing scheme which solves the routing problem in different levels of the network for multicast connections. The network model consists of three levels: collection, core and distribution networks. We adopt the light-trail model in collection-distribution networks which is a convenient way to carry multicast connections. Connection points between the core and collection networks are the edge routers which groom several multicast connections destined to the same distribution network. We evaluate two call acceptance criteria, namely and corresponding to total or partial multicast service, respectively. We show using simulations that our multi-stage routing algorithm with light-trails and edge-grooming improves the performance in the hierarchical network model.