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Title: Differentiated survivability framework and modeling for heterogeneous grooming optical networks
Authors: Ratnam, K. 
Gurusamy, M. 
Zhou, L.
Issue Date: 2007
Citation: Ratnam, K.,Gurusamy, M.,Zhou, L. (2007). Differentiated survivability framework and modeling for heterogeneous grooming optical networks. GLOBECOM - IEEE Global Telecommunications Conference : 2320-2324. ScholarBank@NUS Repository.
Abstract: This paper addresses the problem of dynamic routing of survivable sub-lambda traffic in heterogeneous grooming optical networks wherein sub-lambda client layer connections are multiplexed onto lambda connections on the optical layer. We present a differentiated survivability framework, which includes multi-layer survivability approaches with improved resource sharing methods based on inter-layer and inter-class resource sharing techniques. In addition to this, a new graph based network model is proposed, which supports both 1) the heterogeneity in a network, and 2) the coexistence of inter-layer and inter-class based resource sharing methods. The suitability of the model for a critical must-use grooming port scenario is presented. A tradeoff phenomenon between transceiver-usage and reserved links, which is inherent in the inter-layer sharing methods, is illustrated. Simulation experiments are carried out, and the performance variation and the tradeoff phenomenon are investigated. © 2007 IEEE.
Source Title: GLOBECOM - IEEE Global Telecommunications Conference
ISBN: 1424410436
DOI: 10.1109/GLOCOM.2007.442
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