IEEE/ACM Transactions on Networking (TON)
On multicasting in wavelength-routing mesh networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Information Sciences: an International Journal
Minimum interference optical multicast
ICCOMP'05 Proceedings of the 9th WSEAS International Conference on Computers
A genetic algorithm for solving virtual source placement problem on WDM networks
Computer Communications
Optical multicast over wavelength-routed WDM networks: A survey
Optical Switching and Networking
QoS-driven multicast routing in sparse-splitting optical networks
Photonic Network Communications
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This paper addresses the placement of multicast nodes in wavelength-routed all-optical networks. This problem is motivated by the expected high cost of optical multicast cross-connects due to fabrication complexity and power considerations. An analytical model for the approximate blocking probability in multicast networks is developed. The blocking performance is used to guide an iterative algorithm, Multicast-ADD, for the placement of multicast nodes. We provide validation of the model and the techniques used. In addition, a simulation study is provided to evaluate the performance of the heuristic. Insights obtained from the simulation results reveal that: (1) only a subset of the nodes (found to be 50%) need to be multicast-capable for acceptable blocking performance; (2) the blocking performance of Multicast-ADD outperforms that of random placement; and (3) employing alternate routing trees is not helpful in the optimization procedure.