Survivable traffic grooming in WDM ring networks

Srikanth Sankaranarayanan; Suresh Subramaniam; Hongsik Choi; Hyeong-Ah Choi

doi:10.1117/12.533189

1 October 2003 Survivable traffic grooming in WDM ring networks

Srikanth Sankaranarayanan, Suresh Subramaniam, Hongsik Choi, Hyeong-Ah Choi

Proceedings Volume 5285, OptiComm 2003: Optical Networking and Communications; (2003) https://doi.org/10.1117/12.533189
Event: OptiComm 2003: Optical Networking and Communications, 2003, Dallas, TX, United States

Abstract

Traffic grooming, in which low-rate circuits are multiplexed onto wavelengths, with the goal of minimizing the number of add-drop multiplexers (ADMs) and wavelengths has received much research attention from the optical networking community in recent years. While previous work has considered various traffic models and network architectures, protection requirements of the circuits have not been considered for the most part. In this paper, we consider survivable traffic grooming, or grooming traffic which contains a mix of circuits that need protection and that do not need protection. We assume a unidirectional ring network with all-to-all symmetric traffic with t greater than or equal to 1 circuits between each node pair, of which s require protection. As it turns out, survivable traffic grooming presents a significant tradeoff between the number of wavelengths and the number of ADMs, which is almost non-existent in non-survivable traffic grooming for this type of traffic. We explore this tradeoff by establishing bounds and optimal results for some specific cases in this paper.

Citation Download Citation

Srikanth Sankaranarayanan, Suresh Subramaniam, Hongsik Choi, and Hyeong-Ah Choi "Survivable traffic grooming in WDM ring networks", Proc. SPIE 5285, OptiComm 2003: Optical Networking and Communications, (1 October 2003); https://doi.org/10.1117/12.533189

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