15th International Conference on Optical Network Design and Modeling
Morning session papers presented fixed on the physical layer aspect of optical networks as the question of regenerators placement and the requirement of regenerators on a network. For cost efficiency purposes, it is important to keep the number of regenerators as small as possible.
Morning session papers presented fixed on the physical layer aspect of optical networks as the question of regenerators placement and the requirement of regenerators on a network. For cost efficiency purposes, it is important to keep the number of regenerators as small as possible.
The afternoon sessions focused on controlling and managing aspects, however a common point between all sessions was the use of linear programming application for optimization and assessment of techniques. Indeed the first presentation of the day, a paper by E.l Varvarigos and K. Christodoulopoulos, presented algorithms applied on Optical Networks and how to solve the Integer Linear programming problem, where the solution must be an Integer and not a Real number.
The paper presented by Raul Muñoz debated on the impacts of outdated Control information in GMPLS-controlled WSON for shared path protection. He reminded that the two models to deal with a failure - Protection and Restoration - juggle on a trade-off between restoration time and resource usage. Their study focused on the model where the backup connection is shared between more than one paths. The path computation relies on a Traffic Engineering database (TED), if the link state variation is highly dynamic the Ted can become out-dated. The convergence time of the TED is defined as the difference of time from when the first TE-LSA message is originated until all TED is updated.
The paper presented by J. Ahmed proposed a model for processing LSP (Label Switched Paths) requests in a dynamic bulk provision model to place the traditional one-by-one provision where requests are serviced as they arrive. The LPSs requests are collected and bundled using a time threshold to control the limit. The network architecture is also modified in order to adapt to the model, therefore there is a request queue and a path computation scheduler.
Recommendation for site-seeing: Due Torri, two tours in old central Bologna where one of them is reasonably inclined towards the other, location: by the beginig of Via Ugo Bassi.
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