Redundant trees for preplanned recovery in arbitrary vertex-redundant or edge-redundant graphs
IEEE/ACM Transactions on Networking (TON)
Efficient algorithms for routing dependable connections in WDM optical networks
IEEE/ACM Transactions on Networking (TON)
Routing algorithm for multicast under multi-tree model in optical networks
Theoretical Computer Science
Light trees: optical multicasting for improved performance in wavelength routed networks
IEEE Communications Magazine
Multicast routing algorithms and protocols: a tutorial
IEEE Network: The Magazine of Global Internetworking
Tree-based protection of multicast services in WDM mesh networks
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Delay-constrained survivable multicast routing problem in WDM networks
Computer Communications
Photonic Network Communications
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In this study, we investigate a cost-effective approach for protecting several multicast sessions from any link failure in an optical network. The approach, referred to as cross-sharing, provides an optimal sharing of backup resources among several multicast sessions. Our cross-sharing approach employs the link-vector model, modified for multicast sessions, and provides significant cost savings (48% for a small six-node network and 39% for a large nationwide network) of backup resources relative to arc-disjoint and self-sharing approaches, especially for a large number of sessions.